I'm bfg'ing this.

Custom lexicon for issues, issue state (open, closed) and issue comments.

The case with issue_at is a bit weird since we have a circular dependency: the issue record requires the issue_id, and the issue entry in the db requires the issue_at.

To resolve this we write to the db without the issue_at, fetch the issue_id, create the issue record on the PDS, and then update the issue_at (with SetIssueAt). It's not great, but whatever.

also fix nix builds

some links still need to be stuffed into a dropdown

It's pretty rudimentary. All repos and follows (for now) are consolidated into a []TimelineEvent and sorted by time.

This should be in the profile dropdown.

This is a super trivial implementation last commit for each file. It's slow and inefficient despite using ristretto for in-memory caching.

We should move this to storing in sqlite in the future.