Fixed search field in payment page and cleaned up payment flow

frontend/pshared/lib/service/payment/service.dart

@@ -1,36 +0,0 @@
-import 'package:logging/logging.dart';
-
-import 'package:uuid/uuid.dart';
-
-import 'package:pshared/api/requests/payment/initiate.dart';
-import 'package:pshared/api/responses/payment/payment.dart';
-import 'package:pshared/data/mapper/payment/payment_response.dart';
-import 'package:pshared/models/payment/payment.dart';
-import 'package:pshared/service/authorization/service.dart';
-import 'package:pshared/service/services.dart';
-
-
-class PaymentService {
-  static final _logger = Logger('service.payment');
-  static const String _objectType = Services.payments;
-
-  static Future<Payment> pay(
-    String organizationRef,
-    String quotationRef, {
-    String? idempotencyKey,
-    Map<String, String>? metadata,
-  }) async {
-    _logger.fine('Executing payment for quotation $quotationRef in $organizationRef');
-    final request = InitiatePaymentRequest(
-      idempotencyKey: idempotencyKey ?? Uuid().v4(),
-      quoteRef: quotationRef,
-      metadata: metadata,
-    );
-    final response = await AuthorizationService.getPOSTResponse(
-      _objectType, 
-      '/by-quote/$organizationRef', 
-      request.toJson(),
-    );
-    return PaymentResponse.fromJson(response).payment.toDomain();
-  }  
-}