Merge pull request #1811 from dataease/pr@dev@refactor_async_component

frontend/src/views/system/plugin/PluginCom.vue

 <template>
-  <div>
+
   <async-component
     v-if="showAsync"
     :ref="refId"
@@ -12,7 +12,7 @@
   <div v-else>
     <h1>未知组件无法展示</h1>
   </div>
-  </div>
+
 </template>
 
 <script>