Sort/filter for state pages about website HOT 3 CLOSED

I think this is a great idea, as the data page is pretty long.

<off-topic-ish>
Looking at #59, and #100, I think we're going to have a pretty big rethink coming soon in terms of how the site is structured, and what JS we want to add to pages. In context of both of these things, should we back up just a little bit and think about what our longer-term approach to client-side code should be. There's lots of different approaches in terms of build pipelines, frameworks, etc and I think having that conversation and settling on a solution now will help prevent costly refactors later.
</off-topic-ish>

from website.

#114 partially addresses this -- master now has navigation

from website.

Rolling into requirements doc and closing

from website.