Added About us Page

[AsifQamar]

added about us page with back to home button and matching theme @YadavAkhileshh please review and merge it in higher level

after

https://github.com/user-attachments/assets/fe5c49ab-8188-480e-a817-7c4bdfa23dc8

[github-actions[bot]]

Thank you for submitting your pull request! 🙌 We'll review it as soon as possible. In the meantime, please ensure that your changes align with our chaotic CONTRIBUTING.md. If there are any specific instructions or feedback regarding your PR, we'll provide them here. Thanks again for your contribution! 😊

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[AsifQamar]

@YadavAkhileshh please review this too

[github-actions[bot]]

🎉🎉 Thank you for your contribution! Your PR #739 has been merged! 🎉🎉

[MastanSayyad]

Merged this one