Replace react-plotly.js with vendored Plot component

[nojaf]

📝 Summary

I hope to resolve the Heatmap click problem by updating Plotly.js
As a first step, I want to get rid of react-plotly as it is small and has not been updated for years.

🔍 Description of Changes

Drop the react-plotly.js dependency and its patch file in favor of a
lightweight functional component that wraps Plotly.js directly.

• Add Plot.tsx: ~100 lines using useRef/useEffect instead of a class component
• Include TreemapClick event natively (no longer needs a patch)
• Remove react-plotly.js, @types/react-plotly.js, and the pnpm patch
• Add @types/plotly.js as a direct dev dependency
• Add explicit import type * as Plotly where the namespace was previously
  provided globally by @types/react-plotly.js

📋 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).
• Tests have been added for the changes made.
• Documentation has been updated where applicable, including docstrings for API changes.
• Pull request title is a good summary of the changes - it will be used in the release notes.

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Project	Deployment	Actions	Updated (UTC)
marimo-docs	Ready	Preview, Comment	Feb 9, 2026 2:07pm