Add back to top button

[Saimanjari777]

Is your feature request related to a problem? Please describe.
The back to top button is missing.

Describe the solution you'd like
I want to add the back to top button which makes the users to navigate the website easily.
Please assign this task to me @HimanshuNarware

Checklist

• [x ] I have checked the existing issues *
• [x ] I have read the Contributing Guidelines *
• [x ] I have starred the repository *
• [x ] Working under Gssoc'24

[github-actions]

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