docs: migrate to @nuxthq/ui-kit (#405)

Co-authored-by: Sébastien Chopin <seb@nuxt.com>

docs/composables/useDocs.ts

@@ -1,11 +0,0 @@
-import { createSharedComposable } from '@vueuse/core'
-
-const _useDocs = () => {
-  const isSearchModalOpen = ref(false)
-
-  return {
-    isSearchModalOpen
-  }
-}
-
-export const useDocs = createSharedComposable(_useDocs)

docs/composables/useScrollspy.ts

@@ -1,37 +0,0 @@
-/**
- * Scrollspy allows you to watch visible headings in a specific page.
- * Useful for table of contents live style updates.
- */
-export const useScrollspy = () => {
-  const observer = ref() as Ref<IntersectionObserver>
-  const visibleHeadings = ref([]) as Ref<string[]>
-  const activeHeadings = ref([]) as Ref<string[]>
-
-  const observerCallback = (entries: IntersectionObserverEntry[]) =>
-    entries.forEach((entry) => {
-      const id = entry.target.id
-
-      if (entry.isIntersecting) { visibleHeadings.value.push(id) } else { visibleHeadings.value = visibleHeadings.value.filter(t => t !== id) }
-    })
-
-  const updateHeadings = (headings: Element[]) =>
-    headings.forEach((heading) => {
-      observer.value.observe(heading)
-    })
-
-  watch(visibleHeadings, (val, oldVal) => {
-    if (val.length === 0) { activeHeadings.value = oldVal } else { activeHeadings.value = val }
-  })
-
-  // Create intersection observer
-  onBeforeMount(() => (observer.value = new IntersectionObserver(observerCallback)))
-
-  // Destroy it
-  onBeforeUnmount(() => observer.value?.disconnect())
-
-  return {
-    visibleHeadings,
-    activeHeadings,
-    updateHeadings
-  }
-}