test: Cypress - Flaky Fix (appsmithorg#25070)

## Description

**Fixed below flaky tests**

- MongoDBShoppingCart_spec.ts
- FirstTimeUserOnboarding_spec.js

## Type of change

- Flaky test fix

## How Has This Been Tested?
- Cypress test runs

## Checklist:
### QA activity:
- [ ] Test plan has been approved by relevant developers
- [ ] Test plan has been peer reviewed by QA
- [ ] Cypress test cases have been added and approved by either SDET or
manual QA
- [ ] Organized project review call with relevant stakeholders after
Round 1/2 of QA
- [ ] Added Test Plan Approved label after reveiwing all Cypress test

app/client/cypress/e2e/Regression/Apps/MongoDBShoppingCart_spec.ts

@@ -129,6 +129,7 @@ describe("Shopping cart App", function () {
     agHelper.UpdateInput(appPage.bookquantity, 2, true);
     agHelper.GetNClick(appPage.addButton, 0, true);
     assertHelper.AssertNetworkStatus("@postExecute");
+    agHelper.GetNClick(appPage.bookname);
     agHelper.UpdateInput(appPage.bookname, "A man called ove", true);
     agHelper.UpdateInput(appPage.bookgenre, "Fiction", true);
     agHelper.UpdateInput(appPage.bookprice, 100, true);

app/client/cypress/e2e/Regression/ClientSide/Onboarding/FirstTimeUserOnboarding_spec.js

@@ -193,6 +193,12 @@ describe("FirstTimeUserOnboarding", function () {
     agHelper.AssertElementVisible(OnboardingLocator.dropTarget);
     entityExplorer.DragDropWidgetNVerify(draggableWidgets.TEXT);
     agHelper.RefreshPage(true, "getPage");
+    agHelper.AssertElementEnabledDisabled(
+      debuggerHelper.locators._helpButton,
+      0,
+      false,
+    );
+    agHelper.Sleep(500);
     agHelper.GetNClick(debuggerHelper.locators._helpButton);
     agHelper.AssertElementVisible(OnboardingLocator.introModal);
     agHelper.AssertElementVisible(OnboardingLocator.textWidgetName);
@@ -203,7 +209,13 @@ describe("FirstTimeUserOnboarding", function () {
     agHelper.GetNClick(OnboardingLocator.introModalCloseBtn);
     homePage.NavigateToHome();
     homePage.CreateNewApplication(false);
-    agHelper.AssertElementExist(locators._dropHere);
+    agHelper.AssertElementVisible(locators._dropHere);
+    agHelper.AssertElementEnabledDisabled(
+      debuggerHelper.locators._helpButton,
+      0,
+      false,
+    );
+    agHelper.Sleep(500);
     agHelper.GetNClick(debuggerHelper.locators._helpButton);
     agHelper.AssertElementVisible(OnboardingLocator.checklistDatasourceBtn);
   });
@@ -216,6 +228,12 @@ describe("FirstTimeUserOnboarding", function () {
     homePage.CreateNewApplication(false);
 
     agHelper.AssertElementExist(locators._dropHere);
+    agHelper.AssertElementEnabledDisabled(
+      debuggerHelper.locators._helpButton,
+      0,
+      false,
+    );
+    agHelper.Sleep(500);
     agHelper.GetNClick(debuggerHelper.locators._helpButton);
     agHelper.AssertElementAbsence(OnboardingLocator.introModal);
   });