add dark mode in the website

[ishaanxgupta]

Currently the website does not support dark mode implementation. I would like to add a toggle button so that users can switch between dark and light mode.
This is a UI enhancement feature.
Please let me know if this aligns with the project goals

[ipsitapp8]

Thanks! I’ll start working on this and open a draft PR for early feedback.
I’ll follow the existing website theme and make sure the implementation
is accessible and optional (toggle-based).