feat: use unhead v2 (#549)

Co-authored-by: Anthony Fu <github@antfu.me>

vite.config.ts

@@ -1,6 +1,7 @@
 import path from 'node:path'
 import VueI18n from '@intlify/unplugin-vue-i18n/vite'
 import Shiki from '@shikijs/markdown-it'
+import { unheadVueComposablesImports } from '@unhead/vue'
 import Vue from '@vitejs/plugin-vue'
 import LinkAttributes from 'markdown-it-link-attributes'
 import Unocss from 'unocss/vite'
@@ -44,11 +45,12 @@ export default defineConfig({
 
     // https://github.com/antfu/unplugin-auto-import
     AutoImport({
+      include: [/\.[jt]sx?$/, /\.vue$/, /\.vue\?vue/, /\.md$/],
       imports: [
         'vue',
         'vue-i18n',
-        '@vueuse/head',
         '@vueuse/core',
+        unheadVueComposablesImports,
         VueRouterAutoImports,
         {
           // add any other imports you were relying on