Handle failed authorization from signald
Steps to reproduce:
- Register by linking from signal-android
- register on a different signal-android device
{'type': 'unexpected_error', 'data': {'msg_number': 0, 'message': 'Authorization failed!', 'error': True, 'request': {'type': 'send', 'username': '+15555555555', 'messageBody': "This is the message the Pyre-Qt user is trying to send.", 'recipientNumber': '+6665556666', 'expiresInSeconds': 0}}}