Navbar and Contributors List Updation

![Issue1](https://github.com/user-attachments/assets/66b3dc30-fe0e-4d34-aeeb-0cbc1d0749eb)

![Issue2](https://github.com/user-attachments/assets/7670c0e3-da91-4d58-a3fc-d13f68b3cb4f)

The list is empty. And Navbar is also not responsive with the body. 
Please provide me this opportunity to update the information and navbar responsive to all the devices under the Hacktoberfest label.