[Feature] Add Modern Minimalist Scrollbar

[Praneeth-2602]

Description

The Modern Minimalist Scrollbar features a sleek 6px width, a dark theme with customizable colors, rounded corners for a modern look, cross-browser compatibility, and easy integration into existing projects, enhancing both aesthetics and functionality.

Screenshots

https://github.com/user-attachments/assets/a1661881-d89c-44b2-8cb2-14152da9a18e

Checklist

• [X] I have checked the existing issues.
• [X] I follow Contributing Guidelines of this project.
• [X] I am a GSSOC'24 contributor.
• [ ] I am a IWOC'24 contributor.
• [ ] I am a JWOC'24 contributor.
• [ ] I am a SWOC'24 contributor.

Code of Conduct

• [X] I agree to follow this project's "Code of Conduct".

[github-actions[bot]]

Hey @Praneeth-2602, Welcome to the project Beautiify! 🎊 Thanks for opening an issue! 🙌 Please wait for the issue to be assigned. Happy Coding!! ✨

[github-actions[bot]]

Hello @Praneeth-2602! Your issue #1325 has been closed. Thank you for your contribution!! 🙌