doc,tools: syntax highlight api docs at compile-time

Prior to this commit, API docs would be highlighted after the page
loaded using `highlightjs`. This commit still uses `highlightjs`, but
runs the generation during the compilation of the documentation, making
it so no script needs to load on the client. This results in a faster
load, as well as allowing the pages to fully functional even when
JavaScript is turned off.

PR-URL: https://github.com/nodejs/node/pull/34148


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>