console: user not notified when auth is not required and token is expired

[remyla]

when auth==jwt (token)
when jwt.required==false

and when the token expires, then the console is not aware of it: it continues to show that it is connected as the previous username which was used, but the server is actually answering in 'guest' state (no token)

we must provide a way to notify the user that he is not anymore authenticated to the server

[remyla]

the console and this issue is moved to a separate repo: https://github.com/PRIMCODE/damas-dashboard