chore(play): fix lint (#8215)

play/app.example.vue

@@ -7,7 +7,7 @@
       <menu-icon />
     </el-icon>
     <el-button>test</el-button>
-    <div v-loading="true"></div>
+    <div v-loading="true" />
   </div>
 </template>
 

play/vite.init.ts

@@ -1,7 +1,7 @@
 import { existsSync, readFileSync, writeFileSync } from 'fs'
 
 const app = 'src/App.vue'
-const example = 'app.example'
+const example = 'app.example.vue'
 
 if (!existsSync(app)) {
   writeFileSync(app, readFileSync(example))