Add Navbar to open source page

[supriya46788]

Add Navbar to open source page

same as this 👇

[github-actions]

Thank you for raising this issue!

We'll review it as soon as possible. Kindly Star the repo ⭐ We truly appreciate your contributions! ✨

Meanwhile make sure you've visited the README.md, CONTRIBUTING.md, and CODE_OF_CONDUCT.md before creating a PR for this. Also, please do NOT create a PR until this issue has been assigned to you. 😊

[Nikhilrsingh]

@supriya46788 Hi, could you please assign this issue to me?

[AkshitaGarg404]

Please Assign this issue to me, I have already solved another issue related to open source page.
And I already know how to update the Nav bar, As I just did that for Glossary.html page

[supriya46788]

@supriya46788 Hi, could you please assign this issue to me?

Assigned to you @Nikhilrsingh