PB-365: Templates MFTF Test Coverage

- Adding missing action group descriptions

Author: dhaecker

app/code/Magento/PageBuilder/Test/Mftf/ActionGroup/OptionsMenuActionGroup.xml

@@ -215,6 +215,9 @@
         <waitForPageLoad stepKey="waitForPageLoad2"/>
     </actionGroup>
     <actionGroup name="closeConfirmModal">
+        <annotations>
+            <description>Closes the confirmation modal on the Page Builder stage.</description>
+        </annotations>
         <waitForElementVisible time="10" selector="{{PageBuilderStage.modal}}" stepKey="waitForModal"/>
         <seeElement selector="{{PageBuilderStage.modal}}" stepKey="seeRemovalModal"/>
         <waitForElementVisible time="10" selector="{{PageBuilderStage.modalCancel}}" stepKey="waitForModalCancel"/>

app/code/Magento/PageBuilder/Test/Mftf/ActionGroup/StageActionGroup.xml

@@ -174,6 +174,9 @@
         <waitForPageLoad stepKey="waitForPageLoad"/>
     </actionGroup>
     <actionGroup name="verifyEmptyStage">
+        <annotations>
+            <description>Verifies that the Page Builder stage only has 1 row that is empty.</description>
+        </annotations>
         <arguments>
             <argument name="rowIndex" defaultValue="1" type="string"/>
             <argument name="pageBuilderArea" defaultValue="" type="string"/>