this lets me make the base html code cleaner and it lets me keep using a
seperate file for font-face stuff so the style.css is cleaner. this is
implemented by using the askama template engine with the same syntax
that was used in the style tag in base.html, but i render the template
to text instead of directly to a rocket responder and i hash it with the
sha2 crate. this hashing should only run once, at startup, so it
shouldn't be much of a performance hit.
