fix: 修复二级菜单切换时候BUG

src/layouts/BasicLayout1.js

@@ -456,7 +456,7 @@ const BasicLayout = props => {
                       <Tooltip placement="right" title={collapse ? currentRoutes.name: ''}>
                         <a>
                           {
-                            (currentRoutes && currentRoutes.extData && currentRoutes.extData.icon) &&  /.svg/.test(currentRoutes.extData.icon) ? <ReactSVG src={currentRoutes.extData.icon} style={{width: '22px', height: '22px'}} className={classNames(layoutStyles.icon, layoutStyles.fillCurrent)}/>: currentRoutes && <img src={currentRoutes.extData.icon} />
+                            (currentRoutes && currentRoutes.extData && currentRoutes.extData.icon) && <img src={currentRoutes.extData.icon} />
                           }
                           {
                             collapse ? null:  <span>{currentRoutes && currentRoutes.name}</span>