Umstellung auf UTC Timestamp

lib/network_messages/accept_job_message.g.dart

@@ -20,7 +20,7 @@ Map<String, dynamic> _$ReactionToJson(Reaction instance) => <String, dynamic>{
     };
 
 Track _$TrackFromJson(Map<String, dynamic> json) => Track()
-  ..time = json['time'] as String
+  ..time = (json['time'] as num).toInt()
   ..pos = json['pos'] == null
       ? null
       : FinTaskPos.fromJson(json['pos'] as Map<String, dynamic>);