set extra_css shenanigans

[theycallmezeal]

Two things:

Currently, it'll look for the CSS in /static when it should look in /static/css.

Also, can it be made so that I can use multiple extra_css to add multiple external stylesheets?

[an-empty-string]

Are there any pages that depend on this functionality?

Currently, it'll look for the CSS in /static when it should look in /static/css.

[ovkulkarni]

This was fixed in the recurring donations branch, I'll cherry pick the commit when I get home