replace wrapping button with new class name

services/web/public/stylesheets/app/editor/publish-modal.less

@@ -23,8 +23,8 @@
 		.wl-icon:before{
 				font-size: 14px;
 		}
-		.btn-primary{
-				whiteSpace: 'normal'
+		.btn-wrapping{
+				white-space: normal;
 		}
 		.button-as-link{
          color: green;