MFTF Stability control

 - adding a wait to make sure UI is interactable

Author: okolesnyk

app/code/Magento/Sales/Test/Mftf/ActionGroup/NavigateToNewOrderPageExistingCustomerActionGroup.xml

@@ -32,6 +32,12 @@
         <waitForPageLoad stepKey="waitForCreateOrderPageLoad"/>
 
         <!-- Select store view if appears -->
+        <!--
+            Adding wait for 5 seconds to make sure AdminOrderStoreScopeTreeSection.storeForOrder(storeView.name)
+            renders properly. Unfortunately can not add waitForElement because in some scenarios where this action group
+            is used the step with Store selection is absent. That is why click is conditional.
+        -->
+        <wait time="5" stepKey="wait" />
         <conditionalClick selector="{{AdminOrderStoreScopeTreeSection.storeForOrder(storeView.name)}}" dependentSelector="{{AdminOrderStoreScopeTreeSection.storeForOrder(storeView.name)}}" visible="true" stepKey="selectStoreViewIfAppears"/>
         <waitForPageLoad stepKey="waitForCreateOrderPageLoadAfterStoreSelect"/>
         <see selector="{{AdminHeaderSection.pageTitle}}" userInput="Create New Order" stepKey="seeNewOrderPageTitle"/>