Update Navbar and Theme Toggle Button

[AnushkaChouhan25]

Propose enhancing the navbar design and replacing the theme toggle button with a proper logo-based toggle for improved aesthetics and functionality.

[AnushkaChouhan25]

Hello @iamparas0,

I encountered errors in the App.js file, and despite my attempts to fix them, I couldn't resolve the issue. Some mistakes or repetitions are causing the project to fail during local execution. Could you please review the code and help identify the problem?

[KrishnaMohanty08]

@iamparas0 could assign the issue to me i would like to work on this

[Shalinis19137]

I really like your app and want to work on your project ,please assign this issue to me under gssoc-ext 2024