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/components/AppNavigation/AppNavigation.vue b/src/components/AppNavigation/AppNavigation.vue
index 45a95f5..aa8598b 100644
--- a/src/components/AppNavigation/AppNavigation.vue
+++ b/src/components/AppNavigation/AppNavigation.vue
@@ -5,32 +5,47 @@
         <b-nav vertical class="mb-4">
           <template v-for="navItem in navigationItems">
             <!-- Navigation items with no children -->
-            <b-nav-item
+            <li
               v-if="!navItem.children"
-              :key="navItem.index"
-              :to="navItem.route"
-              :data-test-id="`nav-item-${navItem.id}`"
+              :key="`nav-${navItem.index}`"
+              class="nav-item"
             >
-              <component :is="navItem.icon" />
-              {{ navItem.label }}
-            </b-nav-item>
+              <router-link
+                :to="navItem.route"
+                :data-test-id="`nav-item-${navItem.id}`"
+                class="nav-link"
+              >
+                <component :is="navItem.icon" />
+                {{ navItem.label }}
+              </router-link>
+            </li>
 
             <!-- Navigation items with children -->
-            <li v-else :key="navItem.index" class="nav-item">
+            <li v-else :key="`nav-group-${navItem.index}`" class="nav-item">
               <b-button
-                v-b-toggle="`${navItem.id}`"
+                :class="{ collapsed: !isItemOpen(navItem.id) }"
                 variant="link"
                 :data-test-id="`nav-button-${navItem.id}`"
+                :aria-controls="navItem.id"
+                :aria-expanded="isItemOpen(navItem.id) ? 'true' : 'false'"
+                @click="toggleCollapse(navItem.id)"
               >
                 <component :is="navItem.icon" />
                 {{ navItem.label }}
                 <icon-expand class="icon-expand" />
               </b-button>
-              <b-collapse :id="navItem.id" tag="ul" class="nav-item__nav">
-                <li class="nav-item">
+              <b-collapse
+                :id="navItem.id"
+                v-model="openSections[navItem.id]"
+                tag="ul"
+                class="nav-item__nav"
+              >
+                <li
+                  v-for="(subNavItem, i) in filteredNavItem(navItem.children)"
+                  :key="i"
+                  class="nav-item"
+                >
                   <router-link
-                    v-for="(subNavItem, i) of filteredNavItem(navItem.children)"
-                    :key="i"
                     :to="subNavItem.route"
                     :data-test-id="`nav-item-${subNavItem.id}`"
                     class="nav-link"
@@ -70,21 +85,50 @@
       $t: useI18n().t,
       isNavigationOpen: false,
       currentUserRole: null,
+      openSections: {},
     };
   },
   watch: {
     $route: function () {
       this.isNavigationOpen = false;
+      // Ensure the parent section of the current route is expanded
+      this.initializeOpenSectionsFromRoute();
     },
     isNavigationOpen: function (isNavigationOpen) {
-      this.$root.$emit('change-is-navigation-open', isNavigationOpen);
+      require('@/eventBus').default.$emit(
+        'change-is-navigation-open',
+        isNavigationOpen,
+      );
     },
   },
   mounted() {
     this.getPrivilege();
-    this.$root.$on('toggle-navigation', () => this.toggleIsOpen());
+    require('@/eventBus').default.$on('toggle-navigation', () =>
+      this.toggleIsOpen(),
+    );
+    // Expand the parent section for the current route on initial load/refresh
+    this.initializeOpenSectionsFromRoute();
+  },
+  beforeUnmount() {
+    require('@/eventBus').default.$off(
+      'toggle-navigation',
+      this.handleToggleNavigation,
+    );
   },
   methods: {
+    isItemOpen(id) {
+      return !!this.openSections[id];
+    },
+    toggleCollapse(id) {
+      if (this.$set) {
+        this.$set(this.openSections, id, !this.openSections[id]);
+      } else {
+        this.openSections = {
+          ...this.openSections,
+          [id]: !this.openSections[id],
+        };
+      }
+    },
     toggleIsOpen() {
       this.isNavigationOpen = !this.isNavigationOpen;
     },
@@ -99,6 +143,20 @@
         });
       } else return navItem;
     },
+    initializeOpenSectionsFromRoute() {
+      const currentPath = this.$route?.path;
+      if (!currentPath) return;
+      const sectionsToOpen = {};
+      for (const item of this.navigationItems) {
+        if (
+          item.children &&
+          item.children.some((child) => child.route === currentPath)
+        ) {
+          sectionsToOpen[item.id] = true;
+        }
+      }
+      this.openSections = { ...this.openSections, ...sectionsToOpen };
+    },
   },
 };
 </script>
@@ -108,15 +166,15 @@
   fill: currentColor;
   height: 1.2rem;
   width: 1.2rem;
-  margin-left: 0 !important; //!important overriding button specificity
+  margin-inline-start: 0 !important; //!important overriding button specificity
   vertical-align: text-bottom;
   &:not(.icon-expand) {
-    margin-right: $spacer;
+    margin-inline-end: $spacer;
   }
 }
 
 .nav {
-  padding-top: $spacer / 4;
+  padding-top: calc(#{$spacer} / 4);
   @include media-breakpoint-up($responsive-layout-bp) {
     padding-top: $spacer;
   }
@@ -124,15 +182,16 @@
 
 .nav-item__nav {
   list-style: none;
-  padding-left: 0;
-  margin-left: 0;
+  padding-inline-start: 0;
+  margin-inline-start: 0;
 
   .nav-item {
     outline: none;
+    list-style: none;
   }
 
   .nav-link {
-    padding-left: $spacer * 4;
+    padding-inline-start: $spacer * 4;
     outline: none;
 
     &:not(.nav-link--current) {
@@ -144,7 +203,7 @@
 .btn-link {
   display: inline-block;
   width: 100%;
-  text-align: left;
+  text-align: start;
   text-decoration: none !important;
   border-radius: 0;
 
@@ -156,16 +215,16 @@
 }
 
 .icon-expand {
-  float: right;
-  margin-top: $spacer / 4;
+  float: inline-end;
+  margin-top: calc(#{$spacer} / 4);
 }
 
 .btn-link,
 .nav-link {
   position: relative;
   font-weight: $headings-font-weight;
-  padding-left: $spacer; // defining consistent padding for links and buttons
-  padding-right: $spacer;
+  padding-inline-start: $spacer; // defining consistent padding for links and buttons
+  padding-inline-end: $spacer;
   color: theme-color('secondary');
 
   &:hover {
@@ -198,7 +257,7 @@
     position: absolute;
     top: 0;
     bottom: 0;
-    left: 0;
+    inset-inline-start: 0;
     width: 4px;
     background-color: theme-color('primary');
   }
@@ -221,7 +280,7 @@
   background-color: theme-color('light');
   transform: translateX(-$navigation-width);
   transition: transform $exit-easing--productive $duration--moderate-02;
-  border-right: 1px solid theme-color-level('light', 2.85);
+  border-inline-end: 1px solid theme-color-level('light', 2.85);
 
   @include media-breakpoint-down(md) {
     z-index: $zindex-fixed + 2;