feat: add export button pulse animation when ready

[kunal-yelgate]

Description

Closes #236

Overview

Adds a subtle pulse animation to the Export button to guide user attention when a file has been loaded and export settings are ready.

Changes

• Added pulse animation to the Export button when:

  • file is set
  • status === 'idle'

• Removed the animation when:

  • Export is in progress
  • Export has completed
  • No file is loaded

• Added support for prefers-reduced-motion to disable the animation for users who have motion reduction enabled.

Testing

• Verified the pulse animation appears only when the editor is ready to export.
• Verified the animation stops during export and after export completion.
• Verified the animation is disabled when prefers-reduced-motion is enabled.
• Ran local development environment and confirmed expected behavior.

Acceptance Criteria

• ✅ Subtle pulse animation when ready to export
• ✅ Animation stops during and after export
• ✅ Respects prefers-reduced-motion

[vercel]

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A member of the Team first needs to authorize it.

[github-actions]

👋 Thanks for your PR, @kunal-yelgate!

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
• ⭐ Star the repo to support the project!

Happy coding! 🎉

[github-actions]

✅ PR Format Check Passed — @kunal-yelgate

Basic format checks passed. A maintainer will review your code changes.

This does not mean the PR is approved — it just means the format is correct.

[kunal-yelgate]

Hey @magic-peach review the PR

[kunal-yelgate]

resolve the workflow issue

[github-actions]

👋 This PR has been inactive for 21 days. It will be automatically closed in 14 days if there's no further activity.

If you need help with this PR, please comment or ping a maintainer.
Make sure your branch is rebased onto main and all CI checks pass.

[github-actions]

🔒 Closing this PR due to inactivity. Feel free to reopen and rebase onto main if you'd like to continue!