MAGETWO-91970: Enable wrapping of Heading toolbar menu

- stabilize existing test

Author: anthoula

app/code/Magento/PageBuilder/Test/Mftf/Test/AdminPageBuilderTabsDeleteTest.xml

@@ -404,6 +404,9 @@
             <argument name="containerTargetType" value="PageBuilderRowContentType"/>
             <argument name="containerTargetIndex" value="1" />
         </actionGroup>
+        <actionGroup ref="clickOutsideLiveEditHeading" stepKey="clickOutsideLiveEditHeading">
+            <argument name="index" value="1"/>
+        </actionGroup>
 
         <!-- Configure our heading -->
         <actionGroup ref="openPageBuilderEditPanel" stepKey="openEditMenuOnStage">