Summary:
Currently there are several issues caused by internal users not being logged in. E.g. the rating button doesn't work, flipper traces can't be uploaded etc.
However, the fact that the user is not logged in, is not reflected in the UI if the user has an API key, which is outdated.
See also the scuba query in the linked tasks; this happens for quite some users.
This diff fixes two things:
1. If auth tokens are invalid, this is properly reflected in the UI
2. If at startup the profile can't be loaded, a popup will be shown to log in.
Differential Revision: D19392735
fbshipit-source-id: 2be7c577ead671df16c626c0636e89245cebab14
