Issue #3506502 by robertragas: Update the explode method in the...

Issue #3506502 by robertragas: Update the explode method in the userSynchronizer to not only work on \n but also \r and \r\n

src/UserSynchronizer.php

@@ -66,7 +66,7 @@ final class UserSynchronizer implements UserSynchronizerInterface {
    */
   public function convertUserToLead(UserInterface $user): array {
     $config = $this->configFactory->get('advanced_mautic_integration.settings');
-    $mappings = explode("\n", $config->get('api.user_lead_mapping'));
+    $mappings = preg_split('/\n|\r\n?/', $config->get('api.user_lead_mapping'));
     $lead_data = [];
     foreach ($mappings as $field_pair) {
       [$drupal_field, $mautic_field] = explode('|', $field_pair);