adding footer and improving header in responsiveness and appearance

[Riyachauhan11]

🛠️ Fixes Issue

Fixes: #720

👨‍💻 Description

What does this PR do?

adds footer and fixes header appearance in light mode and makes header and footer both responsive so game works well in smaller screens

📄 Type of Change

• [x] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation update (adds or updates related documentation)

📷 Screenshots/GIFs (if any)

Include screenshots or GIFs to demonstrate your changes

✅ Checklist

• [ ] I am a participant of GSSoC-ext.
• [ ] I have followed the contribution guidelines of this project.
• [ ] I have made this change from my own.
• [ ] I have taken help from some online resources.
• [ ] My code follows the style guidelines of this project.
• [ ] I have performed a self-review of my own code.
• [ ] I have added documentation to explain my changes.

Mandatory Tasks

• [x] Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected.

🤝 GSSoC Participation

• [ ] This PR is submitted under the GSSoC program.
• [ ] I have taken prior approval for this feature/fix.

[github-actions[bot]]

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[YadavAkhileshh]

@Riyachauhan11 please solve the conflict

[Riyachauhan11]

@YadavAkhileshh should be fine now

[Riyachauhan11]

@YadavAkhileshh pls review this pr

[github-actions[bot]]

🎉🎉 Thank you for your contribution! Your PR #731 has been merged! 🎉🎉