TF-3719 Add handle export log to device if need

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

core/lib/domain/exceptions/file_exception.dart

@@ -0,0 +1,21 @@
+import 'package:equatable/equatable.dart';
+
+abstract class FileException with EquatableMixin implements Exception {
+  final String message;
+
+  FileException(this.message);
+
+  @override
+  String toString() => message;
+
+  @override
+  List<Object> get props => [message];
+}
+
+class NotFoundFileInFolderException extends FileException {
+  NotFoundFileInFolderException() : super('No files found in the folder');
+}
+
+class UserCancelShareFileException extends FileException {
+  UserCancelShareFileException() : super('User cancel share file');
+}