removed hardcoded status feedback and submission mode

lib/views/detail/widgets/tender_detail_action.dart

@@ -6,6 +6,7 @@ import 'package:tm_app/view_models/tender_detail_view_model.dart';
 import 'package:tm_app/views/shared/base_button.dart';
 import 'package:tm_app/views/shared/select_submission_bottom_sheet.dart';
 
+import '../../../core/constants/tender_approval_status.dart';
 import '../../../data/services/model/tender_data/tender_data.dart';
 import '../../shared/select_submission_dialog.dart';
 import '../strings/tender_details_strings.dart';
@@ -47,7 +48,8 @@ class TenderDetailActions extends StatelessWidget {
                       backgroundColor: AppColors.primary30,
                       textColor: AppColors.mainBlue,
                       onPressed: () {
-                        if (viewModel.status == 'submitted') {
+                        if (viewModel.status ==
+                            TenderApprovalStatus.submitted.value) {
                           viewModel.submitTenderApproval(
                             tenderId: detail.id!,
                             submissionMode: 'self-apply',
@@ -156,7 +158,8 @@ class TenderDetailActions extends StatelessWidget {
                   backgroundColor: AppColors.lightBlue,
                   textColor: AppColors.mainBlue,
                   onPressed: () {
-                    if (viewModel.status == 'submitted') {
+                    if (viewModel.status ==
+                        TenderApprovalStatus.submitted.value) {
                       viewModel.submitTenderApproval(
                         tenderId: detail.id!,
                         submissionMode: 'self-apply',