Support Dark Mode for React Admin doc website

[wattry]

Is your feature request related to a problem? Please describe. Hi there, small request. I spend a lot of time using the docs, they are really easy to follow and provide great examples. They are just absolutely blinding. If it's possible and light weight could you please consider adding a dark mode?

[slax57]

Hi, Thanks for the feedback and the kind words. It's something we have in our roadmap already! Although I can't give you any ETA for now... Labeling as enhancement request.