## Description
This PR updates common method and locator which is being used in EE PR
here: https://github.com/appsmithorg/appsmith-ee/pull/3247
Fixes #`Issue Number`
_or_
Fixes `Issue URL`
> [!WARNING]
> _If no issue exists, please create an issue first, and check with the
maintainers if the issue is valid._
## Automation
/ok-to-test tags=""
### 🔍 Cypress test results
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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
- **Refactor**
- Improved visibility of certain methods and properties in the
`DataSources` and `JSEditor` classes for testing purposes.
- Updated a selector in the `JSEditor` to accurately target "New JS
Object."
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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