左侧导航栏调整及css更新

config/menu.js

@@ -58,7 +58,7 @@ const projectMenu = {
 const menu = {
     back: {
         name: '项目列表',
-        icon: 'fa-cubes',
+        icon: 'fa-mail-reply-all',
         display: true,
         url: '/subproj',
         children: null,