Added dark mode and scroll bar

[Soumyacode1-prog]

Related Issue

Added the dark/light mode and also added a scroll bar.

Description

These changes made the website look attractive and reduced eye strain. The scroll bar made the user experience much better.

Type of PR

• [ ] Bug fix
• [=> ] Feature enhancement
• [ ] Documentation update
• [ ] Other (specify): ___

Screenshots / videos (if applicable)

[Attach any relevant screenshots or videos demonstrating the changes]

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:

[Include any additional information or context that might be helpful for reviewers.]

[techmannih]

This branch is conflict. Solve and then commit.

[techmannih]

This branch is conflict. Solve and then commit.

[Soumyacode1-prog]

All the changes are made. PLS CHECK ONCE @techmannih

[Soumyacode1-prog]

This branch is conflict. Solve and then commit.

resolved pls check once