perf: optimize some small details

src/store/getters.js

@@ -11,7 +11,6 @@ const getters = {
   introduction: state => state.user.introduction,
   roles: state => state.user.roles,
   permission_routes: state => state.permission.routes,
-  addRoutes: state => state.permission.addRoutes,
   errorLogs: state => state.errorLog.logs
 }
 export default getters

src/store/modules/permission.js

@@ -51,7 +51,7 @@ const actions = {
     return new Promise(resolve => {
       let accessedRoutes
       if (roles.includes('admin')) {
-        accessedRoutes = asyncRoutes
+        accessedRoutes = asyncRoutes || []
       } else {
         accessedRoutes = filterAsyncRoutes(asyncRoutes, roles)
       }