fix: 修复手机看的时候，点开左边侧边栏，点空白的地方不会隐藏的bug

layouts/default.vue

@@ -19,7 +19,7 @@
     .page-container
       #LeftMenu(:style="'display: '+ showLeftMenuValue + ';' + isPhone")
         LeftContent
-      #rightContent
+      #rightContent(@click='showLeftMenu(false)')
         nuxt
         Footer
   v-dialog
@@ -61,11 +61,11 @@ export default {
     }
   },
   methods: {
-    showLeftMenu () {
-      if (this.showLeftMenuValue !== 'block') {
-        this.showLeftMenuValue = 'block'
-      } else {
+    showLeftMenu (show) {
+      if (this.showLeftMenuValue === 'block' || show === false) {
         this.showLeftMenuValue = 'none'
+      } else {
+        this.showLeftMenuValue = 'block'
       }
     }
   }