Nav positioning corrected

[prkr-28]

🚀 Pull Request Checklist

• ✅ My issue is assigned to me, and I have not taken up another task simultaneously.
• 🔁 I have pulled the latest changes from the main branch.
• 🧪 My code is tested and does not break existing functionality.
• 📚 I have added/updated documentation wherever necessary.
• 🧹 My code follows the project’s coding standards.
• ✍️ My commits are clear and meaningful.
• 🧾 I have linked the issue this PR addresses with Closes #<issue_number>.

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🧠 Description

Navbar Fix: Corrected the positioning of the navbar on larger devices to ensure it displays properly across various screen sizes.

GitHub Login Bug Fix: Resolved an issue where the onclick event was written twice, causing a bug during GitHub login.

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[x] 🐞 Bug fix
(Corrected the GitHub login bug with the onclick event.)

[x] 💡 Feature
(Improved the navbar positioning on larger devices, which can be considered a UI feature enhancement.)

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Before correction...

After correction...

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[github-actions]

🙌 Thanks @prkr-28 for raising this PR!
Our team will review it soon ⏳ — meanwhile, please make sure your PR follows our contributing guidelines 👉 Contributing Guidelines 🎉

[github-actions]

🎉🎉 Thank you for your contribution! Your PR #191 has been merged! 🎉🎉