修复菜单bug，菜单图标换为fa

src/main/webapp/WEB-INF/common/_sidebar.html

@@ -23,7 +23,7 @@
                     <!--<li class="nav-small-cap">PERSONAL</li>-->
                     @if(tool.isEmpty(title.children)){
                         <li>
-                            <a href="${ctxPath}${title.url}"><i class="mdi ${title.icon}"></i>${title.name}</a>
+                            <a href="${ctxPath}${title.url}"><i class="fa ${title.icon}"></i>${title.name}</a>
                         </li>
                     @}else{
                         <li>