`noscript` dark theme

[Rudxain]

prefers-color-scheme: dark isn't detected when scripting (JS) is disabled. I assume it should be trivial to make this work with just 1 CSS media-query (preferably in addition to <meta name=color-scheme content="light dark"> to allow extensions like Dark-Reader to easily detect color-scheme-support), unless Lume has some kind of limitation.

BTW, I really appreciate that most of the deno.com pages work without JS!