fix(panel links): fixed panel height issue when using panel links, could cause…

fix(panel links): fixed panel height issue when using panel links, could cause strange panel flow, fixes #2576

public/css/less/panel.less

@@ -48,10 +48,9 @@
     .panel-title-text:after {
       content: "\f08e";
       font-family:'FontAwesome';
-      font-size: 80%;
       padding-left: 10px;
       position: relative;
-      top: -1px;
+      top: 1px;
     }
   }
 }