Adding tests for custom library
https://docs.google.com/spreadsheets/d/1Vq5vRUyAMv2npPv4j41omzZrYcRUb8LEOhNVu_O4OE8/edit?gid=1961024675#gid=1961024675
EE PR: https://github.com/appsmithorg/appsmith-ee/pull/5703
/ok-to-test tags="@tag.Sanity"
<!-- This is an auto-generated comment: Cypress test results -->
> [!TIP]
> 🟢🟢🟢 All cypress tests have passed! 🎉🎉🎉
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/12260773766>
> Commit: 3423a8306cf5a75845a315623da9afdb697b2139
> <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=12260773766&attempt=1"
target="_blank">Cypress dashboard</a>.
> Tags: `@tag.Sanity`
> Spec:
> <hr>Tue, 10 Dec 2024 17:30:21 UTC
<!-- end of auto-generated comment: Cypress test results -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Introduced a comprehensive suite of end-to-end tests for managing
JavaScript libraries, covering functionalities such as installation,
usage, error handling, and cleanup.
- **Bug Fixes**
- Enhanced error handling for incompatible library URLs and ensured
proper behavior upon library uninstallation and reinstallation.
- **Chores**
- Updated test execution configurations to reference the new TypeScript
test specification file.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Co-authored-by: “NandanAnantharamu” <“nandan@thinkify.io”>
a4304542e7