fix: checks whether latestEngineSelected is in list of engines

[Light2Dark]

📝 Summary

When you delete an engine and create a new SQL cell, the cell's code still uses the deleted engine. This fixes that.

However, it's not an ideal fix, using the constant variable triggers a
Uncaught ReferenceError: can't access lexical declaration 'DEFAULT_ENGINE' before initialization

makes me think I have designed the latestEngineSelected feature wrongly.

another smaller issue:

• delete an engine, refresh the page, undelete the engine, the sql cells's dropdown do not update

🔍 Description of Changes

📋 Checklist

• I have read the contributor guidelines.
• For large changes, or changes that affect the public API: this change was discussed or approved through an issue, on Discord, or the community discussions (Please provide a link if applicable).
• I have added tests for the changes made.
• I have run the code and verified that it works as expected.

📜 Reviewers

@akshayka OR @mscolnick

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
marimo-storybook	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Feb 4, 2025 6:12pm

[vercel]

@Light2Dark is attempting to deploy a commit to the marimo Team on Vercel.

A member of the Team first needs to authorize it.

[github-actions]

🚀 Development release published. You may be able to view the changes at https://marimo.app?v=0.10.20-dev32