feat : add undo-redo settings

[siddjs19]

Summary
Implemented undo/redo support for export settings.

Changes
Added recipe history stack (max 20 states)
Added undo/redo actions
Added keyboard shortcuts:
Ctrl/Cmd + Z
Ctrl/Cmd + Shift + Z
Ctrl/Cmd + Y
Added undo/redo UI buttons
Reset history when uploading a new file or resetting editor
Fixes #108

[vercel]

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[github-actions]

⚠️ PR Format Issues — @siddjs19

Please fix the following before your PR can be reviewed:

• ⚠️ Use a conventional PR title. Examples:
  • feat: add dark mode support
  • fix: resolve aria label missing on slider
  • docs: add deployment guide to README

Push new commits after fixing — this comment will update automatically.

📖 CONTRIBUTING.md

[github-actions]

👋 Thanks for your PR, @siddjs19!

Welcome to Reframe — a browser-based video editor built for everyone 🎬

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Quick checklist

• PR title follows Conventional Commits (e.g. feat: add dark mode)
• Linked the issue this PR closes (e.g. Closes #123)
• Tested the changes locally (bun run dev)
• Build passes (bun run build)

Useful links

• 📖 CONTRIBUTING.md
• 🐛 Open Issues
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Happy coding! 🎉

[siddjs19]

@magic-peach pls review this early and merge I had to reset hard and add these setting again due to multiple merges previously

[siddjs19]

I also added shortcut info in keybordshortcut

[magic-peach]

@siddjs19 The undo/redo implementation looks great and all CI checks were passing! However, this PR now has merge conflicts with main due to recent merges. Please rebase to resolve:

git fetch upstream
git checkout feat/undo-redo-export
git rebase upstream/main
# resolve any conflicts, then:
git push --force-with-lease origin feat/undo-redo-export

Also note: the PR reformats a large amount of code (quotes, semicolons) which isn't strictly necessary — please consider keeping the formatting changes minimal to reduce future merge conflict surface. Once rebased and CI re-runs cleanly, this will be ready to merge!

[siddjs19]

@magic-peach review this