Support CERN phone device
Backend will now create by default a CERN phone device (https://gitlab.cern.ch/push-notifications/backend/-/merge_requests/225).
Webportal must make a few adjustments:
-
Not allow deletion -
Link to help section explain what this device is and how to set one if the user doesn't have one -
Show something if the phone isn't set -
Change icon for mattermost, use phone icon for this new device