refactor(http)!: fix cascade dart good practices + docs

packages/wyatt_http_client/lib/src/middleware_client.dart

@@ -24,15 +24,23 @@ import 'package:wyatt_http_client/src/models/unfreezed_request.dart';
 import 'package:wyatt_http_client/src/pipeline.dart';
 import 'package:wyatt_http_client/src/utils/http_methods.dart';
 
+/// {@template middleware_client}
+/// A custom [Client] implementation that allows you to intercept requests
+/// and responses and modify them before they are sent to the server or
+/// before they are returned to the client.
+/// {@endtemplate}
 class MiddlewareClient extends BaseClient {
+  /// {@macro middleware_client}
   MiddlewareClient({
     Pipeline? pipeline,
     Client? inner,
   })  : pipeline = pipeline ?? Pipeline(),
-        inner = inner ?? Client() {
-    print('Using Pipeline:\n$pipeline');
-  }
+        inner = inner ?? Client();
+
+  /// The [Client] that will be used to send requests.
   final Client inner;
+
+  /// The [Pipeline] that will be used to intercept requests and responses.
   final Pipeline pipeline;
 
   @override