Theme hook webform_handler_webform_spam_words_summary not found

Patch attached.

Howdy,

FWIW, I tried the patch (that adds the twig template), but the error keeps showing up in dblog.

I even tried adding...

/**
 * Implements hook_theme().
 */
function webform_spam_words_theme() {
  return [
    'webform_handler_webform_spam_words_summary' => [
      'variables' => [
        'settings' => NULL,
        'handler' => NULL,
      ],
    ],
  ];
}

...to webform_spam_words.module, but that made no difference.