Localize all the CSS

We had been pulling a lot of CSS from third parties via the script tags
in the html ```<head>```, which wasn't great. So I am now
moving it all into assets. Since we don't have that many pages in
this webapp, I'm just going to let it all get autoincluded.
It's not worth the effort to only include it where it's needed.

Sails does this cool thing where things in the styles folder are automagically
minified and gzipped and all that jazz!