fix(components): improve generic types (#3331)

Co-authored-by: Benjamin Canac <canacb1@gmail.com>

docs/app/components/content/examples/input-menu/InputMenuItemsAvatarExample.vue

@@ -1,4 +1,6 @@
 <script setup lang="ts">
+import type { InputMenuItem } from '@nuxt/ui'
+
 const items = ref([
   {
     label: 'benjamincanac',
@@ -23,8 +25,16 @@ const items = ref([
       src: 'https://github.com/noook.png',
       alt: 'noook'
     }
+  },
+  {
+    label: 'sandros94',
+    value: 'sandros94',
+    avatar: {
+      src: 'https://github.com/sandros94.png',
+      alt: 'sandros94'
+    }
   }
-])
+] satisfies InputMenuItem[])
 const value = ref(items.value[0])
 </script>