[Frontend] Label context arrows now always visible

open #929
- Also enable frame dragging in title area when
editing in Layout;
- CSS and markup changes;

platform/commonUI/general/res/sass/user-environ/_frame.scss

@@ -36,8 +36,6 @@
 		line-height: $ohH;
         .left {
             padding-right: $interiorMarginLg;
-
-            z-index: 5;
         }
 	}
 	>.object-holder.abs {