chore: use useTemplateRef

Author: danielroe

app/components/ReadmeTocDropdown.vue

@@ -1,5 +1,4 @@
 <script setup lang="ts">
-import type { ButtonBase } from '#components'
 import type { TocItem } from '#shared/types/readme'
 import { onClickOutside, useEventListener } from '@vueuse/core'
 import { scrollToAnchor } from '~/utils/scrollToAnchor'
@@ -48,7 +47,7 @@ const idToIndex = computed(() => {
 })
 
 const listRef = useTemplateRef('listRef')
-const triggerRef = ref<InstanceType<typeof ButtonBase> | null>(null)
+const triggerRef = useTemplateRef('triggerRef')
 const isOpen = shallowRef(false)
 const highlightedIndex = shallowRef(-1)