feat: 新增租户切换组件和css目录优化

src/api/system/menu.ts

@@ -1,4 +1,6 @@
 import request from "@/utils/request";
+import type { MenuTypeEnum } from "@/enums/business";
+
 const MENU_BASE_URL = "/api/v1/menus";
 
 const MenuAPI = {
@@ -42,7 +44,6 @@ export interface MenuQuery {
   /** 搜索关键字 */
   keywords?: string;
 }
-import type { MenuTypeEnum } from "@/enums/system/menu-enum";
 export interface MenuVO {
   /** 子菜单 */
   children?: MenuVO[];