MC-3694: Add/Update MFTF Tests

- Fixing schema locations
- Fixing some test flakiness

Author: dhaecker

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

@@ -23,6 +23,7 @@
         <waitForLoadingMaskToDisappear stepKey="waitForLoadingMaskToDisappear3"/>
         <waitForElementVisible selector="{{BlockOnGrid.addSelectedBtn}}" stepKey="waitForAddSelected"/>
         <click selector="{{BlockOnGrid.addSelectedBtn}}" stepKey="clickAddSelected"/>
+        <waitForPageLoad stepKey="waitForPageLoad"/>
     </actionGroup>
     <actionGroup name="verifyBlockOnStage">
         <arguments>

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

@@ -6,11 +6,11 @@
   */
 -->
 <tests xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-       xsi:noNamespaceSchemaLocation="../../../../../../../dev/tests/acceptance/vendor/magento/magento2-functional-testing-framework/src/Magento/FunctionalTestingFramework/Test/etc/testSchema.xsd">
+       xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/testSchema.xsd">
     <test name="AdminCreateInvoiceTest">
         <annotations>
             <skip>
-                <issueId>MC-3613</issueId>
+                <issueId value="MC-3613"/>
             </skip>
         </annotations>
     </test>

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

@@ -1085,6 +1085,7 @@
         <executeJS function="{{PageBuilderStoreFront.computedHeight(PageBuilderSliderContentType.role, '0')}}" stepKey="slideInitialHeightStorefront"/>
         <switchToPreviousTab stepKey="switchToPreviousTab"/>
         <reloadPage stepKey="reloadPage"/>
+        <waitForPageLoad stepKey="waitForPageLoad"/>
         <actionGroup ref="switchToPageBuilderStage" stepKey="switchToPageBuilderStage"/>
         <!-- Edit Slide Content -->
         <comment userInput="Edit Slide Content" stepKey="commentEditSlide"/>
@@ -1118,6 +1119,7 @@
         <comment userInput="Validate Storefront" stepKey="commentValidateStorefront"/>
         <switchToNextTab stepKey="switchToNextTab"/>
         <reloadPage stepKey="reloadPage2"/>
+        <waitForPageLoad stepKey="waitForPageLoad2"/>
         <seeElement selector="{{SlideOnFrontend.messageContent('1', PageBuilderSlideItemMessage_Long.value)}}" stepKey="seeSlide1ContentStorefront"/>
         <executeJS function="{{PageBuilderStoreFront.computedHeight(PageBuilderSliderContentType.role, '0')}}" stepKey="slideNewHeightStorefront"/>
         <assertGreaterThan stepKey="assertSlideHeightGrewStorefront">

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

@@ -1457,7 +1457,8 @@
         <actionGroup ref="saveEditPanelSettings" stepKey="saveEditPanel1Settings"/>
         <!-- User Still Sees Slide Item Option Menu If Hovering Over Slider -->
         <comment userInput="User Still Sees Slide Item Option Menu If Hovering Over Slider" stepKey="commentHoverSlider"/>
-        <waitForElementVisible selector="{{SlideOnBackend.optionsMenu('1')}}" stepKey="waitForSlideOptionsMenu"/>
+        <click selector="{{SliderOnStage.slideNavigationDot('1', '1')}}" stepKey="clickSlideOptionsMenu"/>
+        <waitForPageLoad stepKey="waitForPageLoad"/>
         <seeElement selector="{{SlideOnBackend.optionsMenu('1')}}" stepKey="seeSlideOptionsMenu2"/>
         <moveMouseOver selector="{{PageBuilderStage.contentTypeInStageByIndex(PageBuilderSliderContentType.role, '1')}}" stepKey="mouseOverSlider"/>
         <waitForPageLoad stepKey="waitForPageLoad1"/>

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

@@ -7,7 +7,7 @@
 -->
 
 <tests xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-        xsi:noNamespaceSchemaLocation="../../../../../../../dev/tests/acceptance/vendor/magento/magento2-functional-testing-framework/src/Magento/FunctionalTestingFramework/Test/etc/testSchema.xsd">
+       xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/testSchema.xsd">
     <test name="TabItemValidateLayoutSectionDefaultValues">
         <annotations>
             <features value="PageBuilder"/>