Catchlist_todo

1 - we're not doing the "component demo" thing; we're building api-connected pages that use real data. We can refactor them to use dependency injection and be testable without the API later, but priority 1 here is to get real data flowing and establish a usable application.

2 - The (api-connected) sessions page was introduced in this PR: https://github.com/SamPearson/catchlist_todo/pull/54