MC-5810: Improve naming of the critical variables/parameters in the code and configuration

- Resolved minor test generation issue from merging MC-10833

Author: Hwashiang Yu

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

@@ -62,7 +62,7 @@
         <actionGroup ref="saveEditPanelSettings" stepKey="saveEditPanelSettings"/>
         <actionGroup ref="dragContentTypeToDropZone" stepKey="dragRowIntoStage">
             <argument name="contentType" value="PageBuilderRowContentType"/>
-            <argument name="containerTargetType" value="PageBuilderStage"/>
+            <argument name="containerTargetType" value="PageBuilderRootContainerContentType"/>
             <argument name="containerTargetIndex" value="1"/>
             <argument name="contentTypeIndex" value="2"/>
             <argument name="dropZoneIndex" value="2"/>