MC-4872: Convert CreateStoreGroupEntityTest to MFTF

Addressing review comments

Author: sapanathakur

app/code/Magento/Store/Test/Mftf/ActionGroup/AdminCreateNewStoreGroupActionGroup.xml

@@ -52,7 +52,7 @@
         <fillField userInput="{{storeGroupName}}" selector="{{AdminStoresGridSection.storeGrpFilterTextField}}" stepKey="fillSearchStoreGroupField"/>
         <click selector="{{AdminStoresGridSection.searchButton}}" stepKey="clickSearchButton"/>
         <waitForPageLoad stepKey="waitForStoreToLoad"/>
-        <see selector="{{AdminStoresGridSection.firstRow('1')}}" userInput="{{storeGroupName}}" stepKey="seeAssertStoreGroupInGridMessage"/>
+        <see selector="{{AdminStoresGridSection.nthRow('1')}}" userInput="{{storeGroupName}}" stepKey="seeAssertStoreGroupInGridMessage"/>
     </actionGroup>
     <actionGroup name="AssertStoreGroupForm">
         <arguments>
@@ -63,8 +63,6 @@
         </arguments>
         <click selector="{{AdminStoresGridSection.storeGrpNameInFirstRow}}" stepKey="clickEditExistingStoreRow"/>
         <waitForPageLoad stepKey="waitTillAdminSystemStoreGroupPage"/>
-        <grabFromCurrentUrl regex="~(\d+)/~" stepKey="grabStoreGroupIdFromCurrentUrl"/>
-        <seeInCurrentUrl url="system_store/editGroup/group_id/{$grabStoreGroupIdFromCurrentUrl}" stepKey="seeStoreGroupId"/>
         <seeInField selector="{{AdminNewStoreGroupSection.storeGrpWebsiteDropdown}}" userInput="{{website}}" stepKey="seeAssertWebsite"/>
         <seeInField selector="{{AdminNewStoreGroupSection.storeGrpNameTextField}}" userInput="{{storeGroupName}}" stepKey="seeAssertStoreGroupName"/>
         <seeInField selector="{{AdminNewStoreGroupSection.storeGrpCodeTextField}}" userInput="{{storeGroupCode}}" stepKey="seeAssertStoreGroupCode"/>

app/code/Magento/Store/Test/Mftf/Section/AdminStoresGridSection.xml

@@ -20,9 +20,10 @@
         <element name="websiteNameInFirstRow" type="text" selector=".col-website_title>a"/>
         <element name="storeGrpNameInFirstRow" type="text" selector=".col-group_title>a"/>
         <element name="storeNameInFirstRow" type="text" selector=".col-store_title>a"/>
-        <element name="firstRow" type="textarea" selector="(//*[@id='storeGrid_table']/tbody/tr)[{{rownum}}]" parameterized="true"/>
+        <element name="firstRow" type="textarea" selector="(//*[@id='storeGrid_table']/tbody/tr)[1]"/>
+        <element name="nthRow" type="textarea" selector="(//*[@id='storeGrid_table']/tbody/tr)[{{rownum}}]" parameterized="true"/>
         <element name="successMessage" type="text" selector="//div[@class='message message-success success']/div"/>
         <element name="emptyText" type="text" selector="//tr[@class='data-grid-tr-no-data even']/td[@class='empty-text']"/>
         <element name="websiteName" type="text" selector="//td[@class='a-left col-website_title  ']/a[contains(.,'{{websiteName}}')]" parameterized="true"/>
      </section>
-</sections>
+</sections>