Validates the conversion fields form.
This method is responsible for validating the data in the conversion fields form and displaying validation messages.
\Drupal\paragraphs\ParagraphInterface $paragraph: The paragraph.
array $form: An associative array containing the initial structure of the plugin form.
\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.
Overrides ParagraphsConversionInterface::validateConversionForm
public function validateConversionForm(ParagraphInterface $paragraph, array &$form, FormStateInterface $form_state) {
}