fix：PC大会员路由子组件

apps/bigmember_pc/src/router/modules/order.js

@@ -96,7 +96,9 @@ export default [
         }),
         children: [
           {
-            path: '',
+            path: 'big-member',
+            alias: '/big/pc/page/buy_commit',
+            name: 'buy-big-member',
             meta: {
               title: '购买大会员',
               productId: 104