ACQE-8184: Backordered quantity is visible on order item level in backend

- Added waitForElementClickable before click and removed extraspace in selector

Author: glo74186

app/code/Magento/Sales/Test/Mftf/Section/AdminOrderItemsOrderedSection.xml

@@ -40,6 +40,6 @@
         <element name="customOption" type="text" selector=". //dl[@class='item-options']/dt[text()='{{optionValue1}}']/../dd[{{optionValue2}}]" parameterized="true"/>
         <element name="nameOfProduct" type="text" selector="//div[@class='product-title' and contains(text(), '{{productName}}')]" parameterized="true"/>
         <element name="itemsOrderedStatus" type="text" selector="//table[contains(@class, 'edit-order-table')]//tr[td[contains(@class, 'col-product') and contains(., '{{productSku}}')]]/td[contains(@class, 'col-status')]" parameterized="true"/>
-        <element name="backOrdered" type="text" selector="//table[contains(@class, 'edit-order-table')]//tr[   td[contains(@class, 'col-product') and contains(., '{{productSku}}')] ]//td[contains(@class, 'col-ordered-qty')]//tr[th[contains(., 'Backordered')]]/td" parameterized="true"/>
+        <element name="backOrdered" type="text" selector="//table[contains(@class, 'edit-order-table')]//tr[td[contains(@class, 'col-product') and contains(., '{{productSku}}')] ]//td[contains(@class, 'col-ordered-qty')]//tr[th[contains(., 'Backordered')]]/td" parameterized="true"/>
     </section>
 </sections>

app/code/Magento/Sales/Test/Mftf/Test/AdminCreateOrderWithBackOrderQtyEnabledProductTest.xml

@@ -63,6 +63,7 @@
         <!-- Step4: Create Shipment for this Order and verify backorder -->
         <click selector="{{AdminOrderDetailsMainActionsSection.ship}}" stepKey="clickShipAction"/>
         <waitForPageLoad stepKey="waitForPageToLoad"/>
+        <waitForElementClickable selector="{{AdminShipmentMainActionsSection.submitShipment}}" stepKey="waitForSubmitShipmentButtonToBeClickable"/>
         <click selector="{{AdminShipmentMainActionsSection.submitShipment}}" stepKey="clickSubmitShipment"/>
         <waitForText selector="{{AdminOrderItemsOrderedSection.itemsOrderedStatus($$createProduct.sku$$)}}" userInput="Shipped" stepKey="verifyItemStatusAfterShipment"/>
         <waitForText selector="{{AdminOrderItemsOrderedSection.backOrdered($$createProduct.sku$$)}}" userInput="1" stepKey="verifyBackOrderedAfterShipment"/>