Mark 3rd party facebook apps notifications as Facebook

- Toffeed: https://f-droid.org/repository/browse/?fdid=me.jakelane.wrapperforfacebook
- Slimsocial: https://f-droid.org/repository/browse/?fdid=it.rignanese.leo.slimfacebook
- MaterialFBook: https://f-droid.org/repository/browse/?fdid=me.zeeroooo.materialfb

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>

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

@@ -278,6 +278,9 @@ public class NotificationListener extends NotificationListenerService {
             case "org.telegram.messenger":
                 notificationSpec.type = NotificationType.TELEGRAM;
                 break;
+            case "me.zeeroooo.materialfb":
+            case "it.rignanese.leo.slimfacebook":
+            case "me.jakelane.wrapperforfacebook":
             case "com.facebook.katana":
             case "org.indywidualni.fblite":
                 notificationSpec.type = NotificationType.FACEBOOK;