fix: 修复切换工作空间跳到空白页面，提供默认的路由

--bug=1007844 --user=刘瑞斌 【通用功能】用户切换工作空间后，默认显示了空白页面 https://www.tapd.cn/55049933/s/1071039

frontend/src/business/components/common/router/router.js

@@ -16,6 +16,7 @@ Vue.use(VueRouter);
 const requireContext = require.context('@/business/components/xpack/', true, /router\.js$/);
 const router = new VueRouter({
   routes: [
+    {path: "/", redirect: '/setting'},
     {
       path: "/sidebar",
       components: {