improvement: removed border and and fix tooltips when multi-column view

[Light2Dark]

📝 Summary

Let me know what you think!

Before border:

After border:

Before Tooltips	After Tooltips

🔍 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]

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1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
marimo-storybook	⬜️ Ignored (Inspect)	Visit Preview		Feb 1, 2025 7:01pm

[vercel]

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[akshayka]

This looks great! I vaguely remember we had issues with portaling tooltips a long time ago but I could be wrong (@mscolnick)

[mscolnick]

Yea I think portalling caused some reflows and perf issues. With react compiler and upgrading the components, it might be better now. I can do some investigating

[github-actions]

🚀 Development release published. You may be able to view the changes at https://marimo.app?v=0.10.20-dev13