ACP2E-3408: [Pagebuilder Preview UI Issue] The buttons in the Page Builder column aren't lining up correctly

 - Fixed the issue.

Author: devarul

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

@@ -27,6 +27,7 @@
         &.no-column-line {
             .element-children {
                 display: flex;
+                justify-content: right;
             }
         }