You can get the dark reader extension and essentially, make any website you want dark mode - depending on the browser you use. I use Firefox, but I'd imagine you can get it on Chrome as well. Worth a shot.
EDIT: You can. I just looked. if this is something you might be interested in checking out or anyone else.
https://addons.mozilla.org/en-US/fir...on/darkreader/
https://chrome.google.com/webstore/d...bieeh?hl=en-US