ACP2E-676: [Magento Cloud] Removing cross sell products the position count is not being reset

 - Modified the title and description in MFTF.
 - Added the comment line in UI component js file.

Author: devarul

app/code/Magento/Catalog/Test/Mftf/Test/AdminValidateRelatedUpsellCrossSellPositionValueInProductExportCsvTest.xml

@@ -12,8 +12,8 @@
         <annotations>
             <features value="Catalog"/>
             <stories value="[Magento Cloud] Removing cross sell products the position count is not being reset"/>
-            <title value="Admin to validate cross sell position value in products export csv"/>
-            <description value="Admin to validate cross sell position value in products export csv"/>
+            <title value="Admin to validate related, upsell and cross sell position value in products export csv"/>
+            <description value="Admin to validate related, upsell and cross sell position value in products export csv"/>
             <severity value="AVERAGE"/>
             <testCaseId value="AC-2844"/>
             <useCaseId value="ACP2E-676"/>

app/code/Magento/Catalog/view/adminhtml/web/js/components/reset-dynamic-rows-grid-row-position-on-delete.js

@@ -13,11 +13,15 @@ define([
 
     return dynamicRowsGrid.extend({
 
+        /** @inheritdoc */
         deleteRecord: function () {
             this._super();
             this.resetPosition();
         },
 
+        /**
+         * Reset the position on delete of the record.
+         */
         resetPosition() {
             let self = this,
                 position = 0;
@@ -35,6 +39,7 @@ define([
             });
         },
 
+        /** @inheritdoc */
         nextPage: function () {
             this._super();
             resolver(function () {