[Feature] Add more theme color options

[ShreyaMathur19]

Description

I have gone through the website and found out that only two options are available for the color changing background in the home page(it is pink shades or dark shades). I wanted to add more colors option in form of dropdown menu so that user can have the access of what color they want to set to the home page according to their need and choice.

Screenshots

No response

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 @ShreyaMathur19, Welcome to the project Beautiify! 🎊 Thanks for opening an issue! 🙌 Please wait for the issue to be assigned. Happy Coding!! ✨

[anshdeep0504]

Hey, allow me to work on this under GSSOC' 2024