#429: User can add content to the Stage directly

- fix static tests

Author: omiroshnichenko

app/code/Magento/PageBuilder/Test/Mftf/ActionGroup/AdminActionGroup/SwitchToPageBuilderStageActionGroup.xml

@@ -24,6 +24,6 @@
         <waitForPageLoad stepKey="waitForFullScreenAnimation"/>
         <!-- Wait for the first row to be added into the stage for it to be "ready" -->
         <waitForElementNotVisible selector="{{PageBuilderStage.stageLoading}}" stepKey="waitForStageLoadingGraphicNotVisible"/>
-        <waitForElementVisible time="30" selector="{{PageBuilderStage.rootContainer(rowIndex)}}" stepKey="waitForPageBuilderRootContainer"/>
+        <waitForElementVisible time="30" selector="{{PageBuilderStage.rootContainer(rowIndex)}}" stepKey="waitForPageBuilderRow"/>
     </actionGroup>
 </actionGroups>

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

@@ -16,9 +16,9 @@
             <argument name="pageBuilderArea" defaultValue="" type="string"/>
         </arguments>
         <waitForPageLoad stepKey="waitForStageLoad"/>
-        <waitForElementVisible selector="{{PageBuilderStage.rootContainer(rowIndex)}}" stepKey="waitForEmptyStage"/>
-        <seeElement selector="{{PageBuilderStage.rootContainer(rowIndex)}}" stepKey="seeEmptyStage"/>
-        <see userInput="Drag Row, Columns, Tabs, Block, Dynamic Block or HTML Code here" selector="{{PageBuilderStage.rootContainerPlaceholder(rowIndex)}}" stepKey="seeEmptyStagePlaceholderMessage"/>
-        <seeNumberOfElements userInput="0" selector="{{pageBuilderArea}}{{RowOnStage.allRows}}" stepKey="seeZeroRow"/>
+        <waitForElementVisible selector="{{PageBuilderStage.rootContainer(rowIndex)}}" stepKey="waitForEmptyRow"/>
+        <seeElement selector="{{PageBuilderStage.rootContainer(rowIndex)}}" stepKey="seeEmptyRow"/>
+        <see userInput="Drag Row, Columns, Tabs, Block, Dynamic Block or HTML Code here" selector="{{PageBuilderStage.rootContainerPlaceholder(rowIndex)}}" stepKey="seeEmptyRowPlaceholderMessage"/>
+        <seeNumberOfElements userInput="0" selector="{{pageBuilderArea}}{{RowOnStage.allRows}}" stepKey="seeOnlyOneRow"/>
     </actionGroup>
 </actionGroups>

app/code/Magento/PageBuilder/view/adminhtml/web/ts/js/stage-builder.ts

@@ -262,7 +262,7 @@ function buildEmpty(stage: Stage, initialValue: string) {
                 if (rootContentType) {
                     rootContentType.addChild(html);
                 } else {
-                    rootContainer.addChild(html)
+                    rootContainer.addChild(html);
                 }
             });
         }