TF-605 Use bearer token download attachment on Android

lib/features/login/domain/exceptions/authentication_exception.dart

@@ -35,4 +35,11 @@ class NotFoundAccessTokenException implements Exception {
 
 class AccessTokenInvalidException implements Exception {
   AccessTokenInvalidException();
+}
+
+class DownloadAttachmentHasTokenExpiredException implements Exception {
+
+  final String refreshToken;
+
+  DownloadAttachmentHasTokenExpiredException(this.refreshToken);
 }