页面美化：菜单管理树的美化

web/src/main.ts

@@ -29,6 +29,8 @@ import '/@/assets/iconfont/iconfont.css'; //引入css
 import { scanAndInstallPlugins } from '/@/views/plugins/index';
 import VXETable from 'vxe-table'
 import 'vxe-table/lib/style.css'
+
+import 'element-tree-line/dist/style.css'
 let forIconfont = analyzingIconForIconfont(iconfont); //解析class
 iconList.addIcon(forIconfont.list); // 添加iconfont dvadmin3的icon
 iconList.addIcon(elementPlus); // 添加element plus的图标