TF-3601 View entire message on dialog

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

lib/features/email/domain/state/get_entire_message_as_document_state.dart

@@ -0,0 +1,18 @@
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+
+class GettingEntireMessageAsDocument extends LoadingState {}
+
+class GetEntireMessageAsDocumentSuccess extends UIState {
+  final String messageDocument;
+
+  GetEntireMessageAsDocumentSuccess(this.messageDocument);
+
+  @override
+  List<Object?> get props => [messageDocument];
+}
+
+class GetEntireMessageAsDocumentFailure extends FeatureFailure {
+
+  GetEntireMessageAsDocumentFailure({dynamic exception}) : super(exception: exception);
+}