perf: add jsdoc for utils and format some code (#1883)

src/layout/components/index.js

@@ -1,5 +1,5 @@
+export { default as AppMain } from './AppMain'
 export { default as Navbar } from './Navbar'
+export { default as Settings } from './Settings'
 export { default as Sidebar } from './Sidebar/index.vue'
 export { default as TagsView } from './TagsView/index.vue'
-export { default as AppMain } from './AppMain'
-export { default as Settings } from './Settings'

src/layout/index.vue

@@ -17,19 +17,19 @@
 
 <script>
 import RightPanel from '@/components/RightPanel'
-import { Navbar, Sidebar, AppMain, TagsView, Settings } from './components'
+import { AppMain, Navbar, Settings, Sidebar, TagsView } from './components'
 import ResizeMixin from './mixin/ResizeHandler'
 import { mapState } from 'vuex'
 
 export default {
   name: 'Layout',
   components: {
-    RightPanel,
-    Navbar,
-    Sidebar,
     AppMain,
-    TagsView,
-    Settings
+    Navbar,
+    RightPanel,
+    Settings,
+    Sidebar,
+    TagsView
   },
   mixins: [ResizeMixin],
   computed: {