fix(Popover): use shallowref

Co-authored-by: Robin <robin.kehl@singular-it.de>

Author: AscaL

app/components/AppPopover.vue

@@ -6,7 +6,7 @@ const props = defineProps<{
 
 const isOpen = shallowRef(false)
 const popoverId = useId()
-const closeTimeout = ref<ReturnType<typeof setTimeout> | null>(null)
+const closeTimeout = shallowRef<ReturnType<typeof setTimeout> | null>(null)
 
 const closeDelayMs = 500