feat(submission): add css-only particle burst button on click (#55617)

[anuragbraveboy-sudo]

Pull Request Description

This PR resolves #55617 by adding an ease-btn-particle component that utilizes an advanced box-shadow animation to simulate a gamified particle burst effect on click.

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Type of Change

• ✨ New animation / hover effect
• 🧩 New component
• 📝 Documentation improvement
• 🐛 Bug fix in an existing submission
• Other (describe below)

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Submission Checklist

⚠️ PRs that fail this checklist will be closed without review.

• All changes are inside submissions/examples/your-feature-name/
• Includes demo.html — self-contained, opens in browser with no server
• Includes style.css — raw CSS for the proposed feature
• Includes README.md — what it does, how to use it, why it fits EaseMotion CSS
• No changes to core/
• No changes to components/
• One feature per PR (no bundled unrelated changes)

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Feature Description

What does this add?

A button that shoots out a burst of "particles" or confetti when clicked. While this usually requires JavaScript, it can be achieved in pure CSS using the :active state and complex, multi-layered box-shadow animations that expand outward and fade.

How does a developer use it?

<button class="ease-btn-particle">Click Me 🎉</button>

[SAPTARSHI-coder]

✅ Submission Validation Passed!

Great job! All required files are present and valid.

📁 Folder: submissions/examples/particle-burst-55617

Files found:

• ✅ demo.html
• ✅ style.css
• ✅ README.md

🚀 Next Steps:

• A maintainer will review your PR
• Respond to any feedback if requested
• Once approved, your contribution will be merged!

Thank you for contributing to EaseMotion CSS! 🎉

[github-actions]

🎉 Congratulations on your PR merge, @anuragbraveboy-sudo! 🚀

Thank you so much for your valuable contribution to EaseMotion CSS! Your code is now merged into the main branch.

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[github-actions]

🎉 Pull Request Integrated!

Thank you for your contribution, @anuragbraveboy-sudo! Your changes have been successfully merged into main and will be credited to your wall. 🚀

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🎮 Join our Discord Server!
We have an official Discord server for EaseMotion CSS! Join us to connect with other developers, seek help, discuss design choices, and share your creations in the showcase channel: Join the EaseMotion CSS Discord 💜