## Description
This PR added unit test to validate getNextEntityAfterDelete
Fixes#31864
## Automation
/ok-to-test tags="@tag.Sanity"
### 🔍 Cypress test results
<!-- This is an auto-generated comment: Cypress test results -->
> [!IMPORTANT]
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/8340217451>
> Commit: `81950b382c97f2634a44d9f64eef904104df8390`
> Cypress dashboard url: <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=8340217451&attempt=1"
target="_blank">Click here!</a>
> All cypress tests have passed 🎉🎉🎉
<!-- end of auto-generated comment: Cypress test results -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **Refactor**
- Improved internal handling of redirection after deleting an entity to
ensure a smoother user experience.
- **Tests**
- Added tests for better reliability in navigating between entities
after deletions.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
8f70909382