feature: Add github Repo link next to the theme button

[mittalsam98]

Is your feature request related to a problem? Please describe. It would be better if we add the Github link of the repo to easily access the github repo

Describe the solution you'd like A GitHub icon which follows to this github repo in the navbar beside the theme toggle icon like this

I would like to raise PR for this if it is approved. @hkirat pls add your input

[amanasati01]

hey i can add a icon are you working on this?

[mittalsam98]

Hey @amanasati01, I have already raised a PR for this