docs: update

docs/app/composables/fetchComponentMeta.ts

@@ -0,0 +1,32 @@
+import type { ComponentMeta } from 'vue-component-meta'
+
+const useComponentsMetaState = () => useState('components-meta', () => ({}))
+
+export async function fetchComponentMeta(name: string): Promise<{ meta: ComponentMeta }> {
+  const state = useComponentsMetaState()
+
+  if (state.value[name]?.then) {
+    await state.value[name]
+    return state.value[name]
+  }
+  if (state.value[name]) {
+    return state.value[name]
+  }
+
+  // Store promise to avoid multiple calls
+
+  // add to nitro prerender
+  if (import.meta.server) {
+    const event = useRequestEvent()
+    event.node.res.setHeader(
+      'x-nitro-prerender',
+      [event.node.res.getHeader('x-nitro-prerender'), `/api/component-meta/${name}.json`].filter(Boolean).join(',')
+    )
+  }
+  state.value[name] = $fetch(`/api/component-meta/${name}.json`).then((meta) => {
+    state.value[name] = meta
+  })
+
+  await state.value[name]
+  return state.value[name]
+}