chore: update eslint && lint code

src/views/example/components/Dropdown/SourceUrl.vue

@@ -2,12 +2,14 @@
   <el-dropdown :show-timeout="100" trigger="click">
     <el-button plain>
       外链
-      <i class="el-icon-caret-bottom el-icon--right"/>
+      <i class="el-icon-caret-bottom el-icon--right" />
     </el-button>
     <el-dropdown-menu slot="dropdown" class="no-padding no-border" style="width:400px">
       <el-form-item label-width="0px" style="margin-bottom: 0px" prop="source_uri">
         <el-input v-model="source_uri" placeholder="请输入内容">
-          <template slot="prepend">填写url</template>
+          <template slot="prepend">
+            填写url
+          </template>
         </el-input>
       </el-form-item>
     </el-dropdown-menu>