Feat: Style to Scrollbar

[zalabhavy]

Describe the feature

There is default scrollbar in this website i will style it.

Add ScreenShots

This is default scrollbar i will style that.

Record

• [X] I agree to follow this project's Code of Conduct
• [X] I'm a GSSOC'24 contributor
• [X] I want to work on this issue

[github-actions[bot]]

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[zalabhavy]

@PatilHarshh Can you please assign me this!

[PatilHarshh]

go ahead @zalabhavy