Tokens issued before user agents were captured cannot be attributed to a
single device, and the per-app tokens issued earlier could even be reused
from several devices at once.
- Add RemoteStorageAuthorization#device_label, falling back to
"Unknown device(s)" so the card and the details modal share one source
- Show a lower-bound device count with a "+" whenever an app has such a
token, so it reads as "could be more" instead of claiming a number we
cannot support
- Drop the now-redundant device-name wrapper from the details modal
Part of #254
raucao
614ead90a9