fix: Deleting all code in the JS Console editor fills in the default code

[devbymak]

New Pull Request Checklist

• [x] I am not disclosing a vulnerability.
• [x] I am creating this PR in reference to an issue.

Issue Description

Closes: #2557

Approach

TODOs before merging

• [ ] Add tests
• [ ] Add changes to documentation (guides, repository pages, in-code descriptions)

[parse-github-assistant[bot]]

Thanks for opening this pull request!

• 🎉 We are excited about your hands-on contribution!

[uffizzi-cloud[bot]]

Uffizzi Ephemeral Environment deployment-51622

:watch: Updated May 13, 2024, 09:42 UTC

:cloud: https://app.uffizzi.com/github.com/parse-community/parse-dashboard/pull/2558

:page_facing_up: View Application Logs etc.

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[parseplatformorg]

🎉 This change has been released in version 6.0.0-alpha.5

[parseplatformorg]

🎉 This change has been released in version 6.0.0-beta.1