Added hover effect on the navbar links

[vishanurag]

Related Issue

Fixes Issue #565

Description

• Added the hovering effect on the navbars.

Type of PR

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

Screenshots / videos (if applicable)

cselearn-navbar.mp4

Checklist:

• I have performed a self-review of my code
• I have read and followed the Contribution Guidelines.
• I have tested the changes thoroughly before submitting this pull request.
• I have provided relevant issue numbers, screenshots, and videos after making the changes.
• I have commented my code, particularly in hard-to-understand areas.

Additional context:

Please review and merge my pull-request under GSSoC'24

[github-actions]

Thank you for submitting your pull request! 🙌 We'll review it as soon as possible. If there are any specific instructions or feedback regarding your PR, we'll provide them here. Thanks again for your contribution! 😊

[vishanurag]

@Durgesh-Vaigandla please review and merge this pull-request under GSSoC'24 .

[vishanurag]

@Durgesh-Vaigandla @CSEdgeOff sir please review my PR and let me know if everything is fine or not .

[vishanurag]

@Durgesh-Vaigandla please review and merge this pull-request under GSSoC'24 . 🙏