test: add more test for rich content

vitest.config.ts

@@ -1,6 +1,7 @@
 import { resolve } from 'path'
 import { defineConfig } from 'vitest/config'
 import Vue from '@vitejs/plugin-vue'
+import AutoImport from 'unplugin-auto-import/vite'
 
 export default defineConfig({
   resolve: {
@@ -10,5 +11,15 @@ export default defineConfig({
   },
   plugins: [
     Vue(),
+    AutoImport({
+      dts: false,
+      imports: [
+        'vue',
+        '@vueuse/core',
+      ],
+      dirs: [
+        'composables',
+      ],
+    }),
   ],
 })