Add Zotero client section to API key access history

[dstillman]

Currently we hide Zotero client keys from the access history. We don't want to show the key itself or make it editable (though access might become configurable from the client at some point), but you should be able to see existing clients, along with platform, IP address, and approximate geolocation, and have the ability to revoke access. This is important, because changing your password doesn't revoke existing keys.

(We're currently proxying client keys from the streaming server, so some AWS IP addresses make it into the DB. We should fix that before exposing those.)

[dstillman]

These are actually being shown now, which is good in that you can delete them and bad in that 1) we're showing AWS IPs and 2) they're a mess, with no identifying info about platform, location, etc.

So we should do this soon. They should be shown sorted by last access date descending, with a one-click "Remove" or trash button for each.

Showing "Current Device" like Gmail does would be a nice touch.