refactor: add eslint-plugin-vue && lint code (#976)

src/views/errorPage/401.vue

@@ -1,10 +1,10 @@
 <template>
   <div class="errPage-container">
-    <el-button @click="back" icon='arrow-left' class="pan-back-btn">返回</el-button>
+    <el-button icon="arrow-left" class="pan-back-btn" @click="back">返回</el-button>
     <el-row>
       <el-col :span="12">
         <h1 class="text-jumbo text-ginormous">Oops!</h1>
-        gif来源<a href='https://zh.airbnb.com/' target='_blank'>airbnb</a> 页面
+        gif来源<a href="https://zh.airbnb.com/" target="_blank">airbnb</a> 页面
         <h2>你没有权限去该页面</h2>
         <h6>如有不满请联系你领导</h6>
         <ul class="list-unstyled">
@@ -13,15 +13,15 @@
             <router-link to="/dashboard">回首页</router-link>
           </li>
           <li class="link-type"><a href="https://www.taobao.com/">随便看看</a></li>
-          <li><a @click.prevent="dialogVisible=true" href="#">点我看图</a></li>
+          <li><a href="#" @click.prevent="dialogVisible=true">点我看图</a></li>
         </ul>
       </el-col>
       <el-col :span="12">
         <img :src="errGif" width="313" height="428" alt="Girl has dropped her ice cream.">
       </el-col>
     </el-row>
-    <el-dialog title="随便看" :visible.sync="dialogVisible">
-      <img class="pan-img" :src="ewizardClap">
+    <el-dialog :visible.sync="dialogVisible" title="随便看">
+      <img :src="ewizardClap" class="pan-img">
     </el-dialog>
   </div>
 </template>
@@ -30,7 +30,7 @@
 import errGif from '@/assets/401_images/401.gif'
 
 export default {
-  name: 'page401',
+  name: 'Page401',
   data() {
     return {
       errGif: errGif + '?' + +new Date(),