Migrate to Bootstrap 5 and remove Vue compat plugin

Complete migration from Bootstrap 4 (bootstrap-vue) to Bootstrap 5
(bootstrap-vue-next) and remove the @vue/compat plugin to finalize
the Vue 3 migration.

Bundle size impact:
- Before (Bootstrap 4 + bootstrap-vue): 535 KiB gzipped
- After (Bootstrap 5 + bootstrap-vue-next): 511 KiB gzipped
- Reduction: 24 KiB (4.5% smaller)

Package updates:
- Update bootstrap 4.6.2 -> 5.3.8
- Update bootstrap-vue 2.23.1 -> bootstrap-vue-next 0.40.8
- Remove @vue/compat plugin
- Update vue 3.4.29 -> 3.5.24 and related packages
- Add mitt 3.0.1 for global event bus
- Add vue-demi 0.14.10 for library compatibility

Bootstrap 5 CSS updates:
- Replace directional classes: ml/mr/pl/pr -> ms/me/ps/pe
- Replace text-left/right -> text-start/end
- Replace sr-only -> visually-hidden / visually-hidden-focusable
- Update media breakpoint xs -> sm (Bootstrap 5 removed xs)
- Update color functions: gray("700") -> $gray-700
- Add form-switch border-radius for curved toggles
- Update alert, table, toast, form, and button styles

Bootstrap-Vue-Next API changes:
- Use createBootstrap() for plugin registration
- Update modal footer slots: #modal-footer -> #footer
- Fix form select events: @change -> @update:model-value
- Add v-model bindings to modals instead of manual show()/hide()
- Update toast system with custom plugin wrapping useToast()
- Register components and directives explicitly

Vue 3 specific updates:
- Replace $root.$emit with mitt event bus (eventBus.js)
- Update render function from h(App) to createApp(App)
- Add emits option to components
- Use h() instead of $createElement in mixins
- Add Vue 3 compile-time feature flags with documentation
- Update event listeners: $on/$off to eventBus methods
- Add beforeUnmount cleanup for event listeners

New components and significant additions:
- src/plugins/toast.js - Custom toast plugin wrapping useToast() for
  Options API compatibility
- src/components/Global/ConfirmModal.vue - Global confirmation dialog
  shim to replace Bootstrap 4's removed bvModal.msgBoxConfirm
- src/eventBus.js - mitt-based event bus with Vue 2-compatible API
- Navigation state preservation on page refresh implemented

Critical fixes:
- Add global API interceptor to strip Vue reactivity from payloads
- Preserve binary data (File, Blob, FormData) in API requests
- Fix Generate CSR modal v-model binding for proper open/close
- Remove debug logging and fix jest configuration
- Fix responsive text visibility in AppHeader
- Update BVTableSelectableMixin for proper row selection
- Fix BVToastMixin VNode rendering for Vue 3

Vue 3 modal fixes (lazy-loaded components):
- Add v-model support to network modals (ModalIpv4, ModalIpv6, ModalDns,
  ModalHostname, ModalMacAddress, ModalDefaultGateway) by adding
  modelValue prop, watcher on modelValue that triggers show(), and
  update:modelValue emit in resetForm
- Remove lazy loading from TableIpv4, TableIpv6, TableDns to ensure
  modal component refs are available when v-model triggers
- Fix modal title accessibility by adding title prop to modals
  (ModalAddDestination, ModalUser, ModalAddRoleGroup, etc.)

i18n fixes (computed properties):
- Fix computed properties using i18n translations in ModalAddRoleGroup,
  ModalUser, and ModalUploadCertificate
- Move useI18n() call from data() to setup() and return i18n object
- Use i18n.t() instead of $t in computed properties and templates
- Prevents "this.$t is not a function" and "_ctx.$t is not a function"
  errors in Vue 3

Toast notification fixes:
- Fix toast progress bar visibility by setting progressProps to
  undefined (documented way to opt-out) instead of false
- Change modelValue prop to interval for auto-dismiss timing
- Remove temporary CSS display:none hack from _toasts.scss

Network settings fixes:
- Fix checkbox @change event sending Vue reactive proxy object instead
  of boolean by casting with !! operator in changeDomainNameState and
  related methods in NetworkGlobalSettings.vue
- Ensures API receives plain boolean values in PATCH requests

Navigation fixes:
- Fix nav-link styling for navigation items without children by
  replacing b-nav-item with router-link in AppNavigation.vue
- Prevents blue font color from .nav-link CSS class

Configuration updates:
- Remove vue-compat webpack configuration
- Add Vue 3 feature flags (__VUE_OPTIONS_API__, etc.)
- Add .cursor to .gitignore

Accessibility improvements:
- Add autocomplete attributes to password and credential inputs
- Add modal title props for screen reader support

Build completes successfully and UI behavior matches pre-migration.

Extracted features (to be submitted in follow-up PRs):
The following features were removed from this migration PR to keep it
focused on the Bootstrap 5 upgrade. They will be submitted separately:
1. UnresponsiveModal - Server connectivity watchdog with auto-retry
2. Auth token persistence - sessionStorage support for X-Auth-Token
3. Hardware store error handling - try/catch, dynamic discovery
4. Login page connecting indicator - Backend polling with spinner
5. Test updates - Jest setup and snapshot updates for
   Bootstrap-Vue-Next
6. Documentation updates - Vue 3 and Vue I18n v9+ API documentation
7. Enhanced ConfirmModal - Feature-rich confirmation dialog with
   custom actions

Change-Id: Ib76a58f324b3c926cf536e6e4626e4271639de38
Signed-off-by: Jason Westover <jwestover@nvidia.com>
diff --git a/src/views/Settings/SnmpAlerts/ModalAddDestination.vue b/src/views/Settings/SnmpAlerts/ModalAddDestination.vue
index 5eef381..38b1ced 100644
--- a/src/views/Settings/SnmpAlerts/ModalAddDestination.vue
+++ b/src/views/Settings/SnmpAlerts/ModalAddDestination.vue
@@ -1,8 +1,11 @@
 <template>
-  <b-modal id="add-destination" ref="modal" @ok="onOk" @hidden="resetForm">
-    <template #modal-title>
-      {{ $t('pageSnmpAlerts.modal.addSnmpDestinationTitle') }}
-    </template>
+  <b-modal
+    id="add-destination"
+    ref="modal"
+    :title="$t('pageSnmpAlerts.modal.addSnmpDestinationTitle')"
+    @ok="onOk"
+    @hidden="resetForm"
+  >
     <b-form id="form-destination">
       <b-container>
         <b-row>
@@ -64,7 +67,7 @@
         </b-row>
       </b-container>
     </b-form>
-    <template #modal-footer="{ cancel }">
+    <template #footer="{ cancel }">
       <b-button variant="secondary" @click="cancel()">
         {{ $t('global.action.cancel') }}
       </b-button>
diff --git a/src/views/Settings/SnmpAlerts/SnmpAlerts.vue b/src/views/Settings/SnmpAlerts/SnmpAlerts.vue
index d18ea75..7dba367 100644
--- a/src/views/Settings/SnmpAlerts/SnmpAlerts.vue
+++ b/src/views/Settings/SnmpAlerts/SnmpAlerts.vue
@@ -2,7 +2,7 @@
   <b-container fluid="xl">
     <page-title :description="$t('pageSnmpAlerts.pageDescription')" />
     <b-row>
-      <b-col xl="9" class="text-right">
+      <b-col xl="9" class="text-end">
         <b-button variant="primary" @click="initModalAddDestination">
           <icon-add />
           {{ $t('pageSnmpAlerts.addDestination') }}
@@ -13,7 +13,9 @@
       <b-col xl="9">
         <table-toolbar
           ref="toolbar"
-          :selected-items-count="selectedRows.length"
+          :selected-items-count="
+            Array.isArray(selectedRows) ? selectedRows.length : 0
+          "
           :actions="tableToolbarActions"
           @clear-selected="clearSelectedRows($refs.table)"
           @batch-action="onBatchAction"
@@ -25,6 +27,7 @@
           show-empty
           no-select-on-click
           hover
+          thead-class="table-light"
           :fields="fields"
           :items="tableItems"
           :empty-text="$t('global.table.emptyMessage')"
@@ -36,9 +39,11 @@
               v-model="tableHeaderCheckboxModel"
               data-test-id="snmpAlerts-checkbox-selectAll"
               :indeterminate="tableHeaderCheckboxIndeterminate"
-              @change="onChangeHeaderCheckbox($refs.table)"
+              @change="onChangeHeaderCheckbox($refs.table, $event)"
             >
-              <span class="sr-only">{{ $t('global.table.selectAll') }}</span>
+              <span class="visually-hidden-focusable">
+                {{ $t('global.table.selectAll') }}
+              </span>
             </b-form-checkbox>
           </template>
           <template #cell(checkbox)="row">
@@ -47,7 +52,9 @@
               :data-test-id="`snmpAlerts-checkbox-selectRow-${row.index}`"
               @change="toggleSelectRow($refs.table, row.index)"
             >
-              <span class="sr-only">{{ $t('global.table.selectItem') }}</span>
+              <span class="visually-hidden-focusable">
+                {{ $t('global.table.selectItem') }}
+              </span>
             </b-form-checkbox>
           </template>
 
@@ -71,7 +78,7 @@
       </b-col>
     </b-row>
     <!-- Modals -->
-    <modal-add-destination @ok="onModalOk" />
+    <modal-add-destination v-model="showAddDestination" @ok="onModalOk" />
   </b-container>
 </template>
 
@@ -84,6 +91,7 @@
 import TableRowAction from '@/components/Global/TableRowAction';
 import LoadingBarMixin from '@/components/Mixins/LoadingBarMixin';
 import BVToastMixin from '@/components/Mixins/BVToastMixin';
+import { useModal } from 'bootstrap-vue-next';
 
 import BVTableSelectableMixin, {
   selectedRows,
@@ -108,9 +116,14 @@
     this.hideLoader();
     next();
   },
+  setup() {
+    const bvModal = useModal();
+    return { bvModal };
+  },
   data() {
     return {
       $t: useI18n().t,
+      showAddDestination: false,
       fields: [
         {
           key: 'checkbox',
@@ -126,7 +139,7 @@
         {
           key: 'actions',
           label: '',
-          tdClass: 'text-right text-nowrap',
+          tdClass: 'text-end text-nowrap',
         },
       ],
       tableToolbarActions: [
@@ -201,28 +214,26 @@
         .finally(() => this.endLoader());
     },
     initModalAddDestination() {
-      this.$bvModal.show('add-destination');
+      this.showAddDestination = true;
     },
     initModalDeleteDestination(destination) {
-      this.$bvModal
-        .msgBoxConfirm(
-          i18n.global.t('pageSnmpAlerts.modal.deleteConfirmMessage', {
-            destination: destination.id,
-          }),
-          {
-            title: i18n.global.t(
-              'pageSnmpAlerts.modal.deleteSnmpDestinationTitle',
-            ),
-            okTitle: i18n.global.t('pageSnmpAlerts.deleteDestination'),
-            cancelTitle: i18n.global.t('global.action.cancel'),
-            autoFocusButton: 'ok',
-          },
-        )
-        .then((deleteConfirmed) => {
-          if (deleteConfirmed) {
-            this.deleteDestination(destination);
-          }
-        });
+      this.confirmDialog(
+        i18n.global.t('pageSnmpAlerts.modal.deleteConfirmMessage', {
+          destination: destination.id,
+        }),
+        {
+          title: i18n.global.t(
+            'pageSnmpAlerts.modal.deleteSnmpDestinationTitle',
+          ),
+          okTitle: i18n.global.t('pageSnmpAlerts.deleteDestination'),
+          cancelTitle: i18n.global.t('global.action.cancel'),
+          autoFocusButton: 'ok',
+        },
+      ).then((deleteConfirmed) => {
+        if (deleteConfirmed) {
+          this.deleteDestination(destination);
+        }
+      });
     },
     deleteDestination({ id }) {
       this.startLoader();
@@ -234,44 +245,43 @@
     },
     onBatchAction(action) {
       if (action === 'delete') {
-        this.$bvModal
-          .msgBoxConfirm(
-            i18n.global.t(
-              'pageSnmpAlerts.modal.batchDeleteConfirmMessage',
-              this.selectedRows.length,
+        const count = this.selectedRows.length;
+        this.confirmDialog(
+          i18n.global.t(
+            'pageSnmpAlerts.modal.batchDeleteConfirmMessage',
+            count,
+          ),
+          {
+            title: i18n.global.t(
+              'pageSnmpAlerts.modal.deleteSnmpDestinationTitle',
+              count,
             ),
-            {
-              title: i18n.global.t(
-                'pageSnmpAlerts.modal.deleteSnmpDestinationTitle',
-                this.selectedRows.length,
-              ),
-              okTitle: i18n.global.t(
-                'pageSnmpAlerts.deleteDestination',
-                this.selectedRows.length,
-              ),
-              cancelTitle: i18n.global.t('global.action.cancel'),
-              autoFocusButton: 'ok',
-            },
-          )
-          .then((deleteConfirmed) => {
-            if (deleteConfirmed) {
-              this.startLoader();
-              this.$store
-                .dispatch(
-                  'snmpAlerts/deleteMultipleDestinations',
-                  this.selectedRows,
-                )
-                .then((messages) => {
-                  messages.forEach(({ type, message }) => {
-                    if (type === 'success') this.successToast(message);
-                    if (type === 'error') this.errorToast(message);
-                  });
-                })
-                .finally(() => this.endLoader());
-            }
-          });
+            okTitle: i18n.global.t('pageSnmpAlerts.deleteDestination', count),
+            cancelTitle: i18n.global.t('global.action.cancel'),
+            autoFocusButton: 'ok',
+          },
+        ).then((deleteConfirmed) => {
+          if (deleteConfirmed) {
+            this.startLoader();
+            this.$store
+              .dispatch(
+                'snmpAlerts/deleteMultipleDestinations',
+                this.selectedRows,
+              )
+              .then((messages) => {
+                messages.forEach(({ type, message }) => {
+                  if (type === 'success') this.successToast(message);
+                  if (type === 'error') this.errorToast(message);
+                });
+              })
+              .finally(() => this.endLoader());
+          }
+        });
       }
     },
+    confirmDialog(message, options = {}) {
+      return this.$confirm({ message, ...options });
+    },
     onTableRowAction(action, row) {
       if (action === 'delete') {
         this.initModalDeleteDestination(row);