TF-1974 Check refreshToken is not empty when calling appAuth.token()

(cherry picked from commit 4d06516a91d0c8c9ecf66275abe5f825309c4bba)

lib/features/email/domain/usecases/download_attachments_interactor.dart

@@ -72,7 +72,8 @@ class DownloadAttachmentsInteractor {
       }
     } catch (exception) {
       log('DownloadAttachmentsInteractor::execute(): $exception');
-      if (exception is DownloadAttachmentHasTokenExpiredException) {
+      if (exception is DownloadAttachmentHasTokenExpiredException &&
+          exception.refreshToken.isNotEmpty) {
         yield* _retryDownloadAttachments(
             accountId,
             baseDownloadUrl,

lib/features/login/data/network/config/authorization_interceptors.dart

@@ -79,6 +79,7 @@ class AuthorizationInterceptors extends InterceptorsWrapper {
     log('AuthorizationInterceptors::onError(): $err');
     if (_isTokenExpired() &&
         err.response?.statusCode == 401 &&
+        _isRefreshTokenNotEmpty() &&
         _isAuthenticationOidcValid()) {
       try {
         final newToken = await _authenticationClient.refreshingTokensOIDC(
@@ -139,6 +140,8 @@ class AuthorizationInterceptors extends InterceptorsWrapper {
     return false;
   }
 
+  bool _isRefreshTokenNotEmpty() => _token != null && _token!.refreshToken.isNotEmpty;
+
   String _getAuthorizationAsBasicHeader(String? authorization) => 'Basic $authorization';
 
   String _getTokenAsBearerHeader(String token) => 'Bearer $token';