Schema für Topic geändert

lib/main.dart

@@ -42,7 +42,7 @@ Future<void> main() async {
     LogEntrySchema,
     RankingSchema,
     PictureSchema
-  ], directory: dir.path);
+  ], directory: dir.path, name: "database_v1");
 
   runZonedGuarded(() {}, (error, stackTrace) {
     _traceUncaughtExceptions(error, stackTrace);