Replaces the Drupal 8 deprecated drupal_set_message() to \Drupal::messenger->addMessage().
Test Instructions
Access admin/contenta/revert and submit the form. A message saying "Contenta has successfully reverted to a clean state!" sould appear if no error is thrown.
Task: #123
Replaces the Drupal 8 deprecated drupal_set_message() to \Drupal::messenger->addMessage().
Test Instructions
Access admin/contenta/revert and submit the form. A message saying "Contenta has successfully reverted to a clean state!" sould appear if no error is thrown.
QA