TF-2602 Set charset for attachment with mimeType=text/plain when sent email on mobile

Signed-off-by: dab246 <tdvu@linagora.com>

lib/features/upload/data/model/upload_file_arguments.dart

@@ -1,5 +1,6 @@
 
 import 'package:core/data/network/dio_client.dart';
+import 'package:core/utils/file_utils.dart';
 import 'package:equatable/equatable.dart';
 import 'package:tmail_ui_user/features/base/isolate/background_isolate_binary_messenger/background_isolate_binary_messenger.dart';
 import 'package:tmail_ui_user/features/upload/domain/model/mobile_file_upload.dart';
@@ -8,6 +9,7 @@ import 'package:tmail_ui_user/features/upload/domain/model/upload_task_id.dart';
 class UploadFileArguments with EquatableMixin {
 
   final DioClient dioClient;
+  final FileUtils fileUtils;
   final UploadTaskId uploadId;
   final MobileFileUpload mobileFileUpload;
   final Uri uploadUri;
@@ -15,6 +17,7 @@ class UploadFileArguments with EquatableMixin {
 
   UploadFileArguments(
     this.dioClient,
+    this.fileUtils,
     this.uploadId,
     this.mobileFileUpload,
     this.uploadUri,
@@ -24,6 +27,7 @@ class UploadFileArguments with EquatableMixin {
   @override
   List<Object?> get props => [
     dioClient,
+    fileUtils,
     uploadId,
     mobileFileUpload,
     uploadUri,