feat: get cards from backend

lib/feature/ranked/data/data_source/remote/ranked_api_provider.dart

@@ -0,0 +1,10 @@
+import 'package:dio/dio.dart';
+
+import '../../../../../core/locator/locator.dart';
+import '../../../../../core/network/api_provider_imp.dart';
+
+class RankedApiProvider {
+  ApiProviderImp get _api => locator<ApiProviderImp>();
+
+  Future<Response> getLeaderboard() => _api.get('/leaderboard');
+}