added scroll bar through the styling needed to implement it

[Riyachauhan11]

Related Issue

None

Fixes: #3455

Description

I have added a scroll bar to make navigation faster and easier as the homepage is quite long right now and reaching to its end with just scrolling or using the provided scroll button takes unnecessary time.

Type of PR

• Bug fix
• Feature enhancement
• Documentation update
• Other (specify): _______________

Screenshots / videos (if applicable)

2024-10-15.02-15-14.mp4

Checklist:

• I have made this change from my own.
• My code follows the style guidelines of this project.
• I have performed a self-review of my own code.
• My changes generate no new warnings.
• I have tested the changes thoroughly before submitting this pull request.
• I have provided relevant issue numbers and screenshots after making the changes.

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