add fab-expanding-menu-qn animation to submissions/examples

[scriptedbyshivam]

Description

This PR adds a new "Animated Floating Action Button (FAB) with Expanding Menu" component to the repository. It creates a smooth, interactive expanding menu on hover, featuring a rotating main button and a staggered, bouncy reveal of sub-buttons, all built with pure CSS.

Changes

• Added submissions/examples/fab-expanding-menu-qn/ folder.
• Added demo.html with the HTML structure, inline SVG icons, and a CSS-only plus icon.
• Added style.css with the flexbox layout, staggered transition delays, rotation, and scale animations.
• Added README.md with usage instructions and customization tips (including how to change the expansion direction).

Related Issue

Closes #22674

Checklist

• I have read the CONTRIBUTING.md guidelines.
• I have placed my files in the submissions/examples/fab-expanding-menu-qn/ directory.
• I have not modified any files in core/ or components/.
• My submission includes demo.html, style.css, and README.md.
• I have appended a unique identifier (-qn) to the feature name to avoid conflicts.
• My commits are squashed into a single meaningful commit with a clear message.

[SAPTARSHI-coder]

✅ Submission Validation Passed!

Great job! All required files are present and valid.

📁 Folder: submissions/examples/fab-expanding-menu-qn

Files found:

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

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• 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, @scriptedbyshivam! 🚀

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, @scriptedbyshivam! Your changes have been successfully merged into main and will be credited to your wall. 🚀

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