Add gallery selection

lib/main.dart

@@ -40,8 +40,10 @@ void main() async {
   final secretsService = SecretsService();
   final entryManagerService = EntryManagerService();
   final timelineManager = TimelineManager();
+  final galleryService = GalleryService();
+  galleryService.getGalleries();
   getIt.registerLazySingleton<ConnectionsManager>(() => ConnectionsManager());
-  getIt.registerLazySingleton<GalleryService>(() => GalleryService());
+  getIt.registerSingleton(galleryService);
   getIt.registerSingleton<EntryManagerService>(entryManagerService);
   getIt.registerSingleton<SecretsService>(secretsService);
   getIt.registerSingleton<AuthService>(authService);