Contact behaviour when server refuse request

[Zykino]

When requesting the contact list I sometimes end up waiting undefinitively the response of contact app.
The console show that cozy returned a "401 Unauthorized" but nothing in the js logs. The "spinner" stay in screen forever.

• Interpret a response fail from the server (and remove the spinner + error message on screen)
• For clarity move the spinner over the contact menu (All the time I think it's all map that is stuck which is false.

[jojorb]

never seen that kind of error 401 from now.
move that spinner make sense.
unfortunately, i don't have many times right now to fix issues, can't promise anything.
If some people feel it, PR are very welcome.