Friend status is unreliable

[Nutcake]

Deciding if a given user is currently a valid friend is unreliable.
In the "Find Users" interface the button to add or remove a user as a friend can indicate the wrong state. From what I can tell there is no direct endpoint to check friend status so we need to instead check if the current user is part of the list of friends retrieved on the main screen, but this seems to fail sometimes and show the wrong status.