Fix order creation API

Author: ShiftHackZ

lib/api/interceptor_woo_auth.dart

@@ -9,7 +9,10 @@ class WooAuthInterceptor extends Interceptor {
     var publicToken = dotenv.env['AUTH_PUBLIC_TOKEN'].toString();
     var secretToken = dotenv.env['AUTH_SECRET_TOKEN'].toString();
     String basic = 'Basic ' + base64Encode(utf8.encode('$publicToken:$secretToken'));
-    options.headers = ({'Authorization': '$basic'});
+    options.headers = ({
+      'Authorization': '$basic',
+      'Content-Type': 'application/json; charset=UTF-8',
+    });
     super.onRequest(options, handler);
   }
 }

lib/datasource/orders_create_data_source.dart

@@ -1,6 +1,5 @@
 import 'package:wooapp/api/woo_api_client.dart';
 import 'package:wooapp/database/database.dart';
-import 'package:wooapp/datasource/cart_data_source.dart';
 import 'package:wooapp/locator.dart';
 import 'package:wooapp/model/cart_response.dart';
 import 'package:wooapp/model/order.dart';