feat: add function of async router and async menu; 🌟

新增：异步路由和菜单功能；

src/components/exception/ExceptionPage.vue

@@ -7,7 +7,7 @@
       <h1>{{config[type].title}}</h1>
       <div class="desc">{{config[type].desc}}</div>
       <div class="action">
-        <a-button type="primary" >返回首页</a-button>
+        <a-button type="primary" @click="backHome">返回首页</a-button>
       </div>
     </div>
   </div>
@@ -18,11 +18,19 @@ import Config from './typeConfig'
 
 export default {
   name: 'ExceptionPage',
-  props: ['type'],
+  props: ['type', 'homeRoute'],
   data () {
     return {
       config: Config
     }
+  },
+  methods: {
+    backHome() {
+      if (this.homeRoute) {
+        this.$router.push(this.homeRoute)
+      }
+      this.$emit('backHome', this.type)
+    }
   }
 }
 </script>