getBannedUsers method

Implementation

Future<List<SetonixUser>> getBannedUsers() async {
  final users = (await service?.getBannedUsers() ?? const [])
      .where((user) => user.fingerprint != null && user.isBanned)
      .toList();
  users.sort((a, b) => a.name.toLowerCase().compareTo(b.name.toLowerCase()));
  return users;
}