Pebble: fix alarm notifications only working one

id -1 means undefined, everything else is liked to a real android notification

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/AlarmClockReceiver.java

@@ -48,6 +48,7 @@ public class AlarmClockReceiver extends BroadcastReceiver {
             lastId = generateId();
             NotificationSpec spec = new NotificationSpec();
             spec.type = NotificationType.GENERIC_ALARM_CLOCK;
+            spec.id = -1;
             // can we get the alarm title somehow?
             GBApplication.deviceService().onNotification(spec);
         }