MC-3664: Safari - Button Item Grab Handle Mouse Cursor Is Displaying as a Text Cursor

- display cursor as disabled when grab handle is disabled

Author: krissyhiserote

app/code/Magento/PageBuilder/view/adminhtml/web/css/source/content-type/button-item/_default.less

@@ -58,7 +58,7 @@
                     position: absolute;
                 }
 
-                &.disabled:before {
+                &.disabled {
                     color: @color-light-gray;
                     cursor: not-allowed;
                 }