Fix table row alignment and table head border

- Aligns content in table rows with expand and action buttons
- Adds border to table head

Signed-off-by: Dixsie Wolmers <dixsie@ibm.com>
Change-Id: I403575bedc78d71ad05edcae2f59f7df994d3630
diff --git a/src/views/Health/EventLogs/EventLogs.vue b/src/views/Health/EventLogs/EventLogs.vue
index 22a6283..c345d8f 100644
--- a/src/views/Health/EventLogs/EventLogs.vue
+++ b/src/views/Health/EventLogs/EventLogs.vue
@@ -206,7 +206,8 @@
         {
           key: 'severity',
           label: this.$t('pageEventLogs.table.severity'),
-          sortable: true
+          sortable: true,
+          tdClass: 'text-nowrap'
         },
         {
           key: 'type',