refactor: useKeyboardEvents composable (#9959)

This PR has the following changes

1. Fix tab styles issue caused by adding an additional wrapper for
getting an element ref on `ChatTypeTabs.vue`
2. Refactor `useKeyboardEvents` composable to not require an element
ref. It will use a local abort controller to abort any listener

---------

Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>

app/javascript/dashboard/components/widgets/mentions/MentionBox.vue

@@ -39,7 +39,6 @@ const onSelect = () => {
 };
 
 useKeyboardNavigableList({
-  elementRef: mentionsListContainerRef,
   items: computed(() => props.items),
   onSelect,
   adjustScroll,