Add "Without sign-in last 30 days" and "Without sign-in" filters
Created by: bbodenmiller
Adds two new filters for the admin/users page:
- Without sign-in last 30 days
- Without sign-in
Ideally I'd like to have some advanced filters and sort options like the admin/projects page but this is an improvement. It'd be great if we tracked when each user last committed (e.g. last_commited_at) or completed an activity (e.g. last_activity_at) such as commenting on an issue so we could gauge how active users are.
I'll squash commits and add a meaningful commit message later.