Support dark mode in api docs

[peterreisz]

What is the type of issue?

Something else

What is the issue?

I'm not familiar with the just-the-docs or the jekyll doc generator, but running scripts from this open issue in the console on the effect api docs site works:

https://github.com/just-the-docs/just-the-docs/issues/234

Please add support for dark mode in api docs

Where did you find it?

No response

[mikearnaldi]

Will be done when we merge the api reference docs with the main effect.website