修复菜单总是显示无效的问题

Signed-off-by: chenting <1016830869@qq.com>

Author: moon6967

src/utils/routerHelper.ts

@@ -73,7 +73,7 @@ export const generateRoute = (routes: AppCustomRouteRecordRaw[]): AppRouteRecord
       noCache: !route.keepAlive,
       alwaysShow:
         route.children &&
-        route.children.length === 1 &&
+        route.children.length > 0 &&
         (route.alwaysShow !== undefined ? route.alwaysShow : true)
     } as any
     // 特殊逻辑：如果后端配置的 MenuDO.component 包含 ?，则表示需要传递参数