Style improvements

Done along with @mollymcleod!
@mollymcleod My hunch is that once they're actually taking action, it'll become more important to be able to see what's happened most recently (i.e., within 7 days instead of only 30), which makes me want to start out with it included in order to set them up for success. I don't want to hold up merging this pull request, though. Let's leave it out for now and maybe see how things are looking on Monday.