Theme configuration

lib/providers/app_info_provider.dart

@@ -0,0 +1,9 @@
+import 'package:package_info_plus/package_info_plus.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'app_info_provider.g.dart';
+
+@Riverpod(keepAlive: true)
+PackageInfo appInfo(AppInfoRef ref) {
+  throw UnimplementedError();
+}