MC-30175: UI component rendering config

- Resolved mftf test failure

Author: Hwashiang Yu

app/code/Magento/Payment/Test/Mftf/ActionGroup/ApplyCouponOnPaymentPageActionGroup.xml

@@ -20,6 +20,7 @@
         <fillField selector="{{ProductCardSection.addCode}}" userInput="{{couponCode}}" stepKey="TypeDiscountCode"/>
         <click selector="{{ProductCardSection.applyDiscount}}" stepKey="clickToApplyDiscount"/>
         <waitForPageLoad stepKey="WaitForDiscountToBeAdded"/>
-        <see selector="{{ProductCardSection.discountVerificationMsg}}" userInput="Your coupon was successfully applied" stepKey="discountApplyMessage"/>
+        <!-- Success message will change to display none so will check DOM instead -->
+        <seeElementInDOM selector="{{ProductCardSection.discountSuccessMsgInDOM}}" stepKey="discountApplyMessage"/>
     </actionGroup>
 </actionGroups>