hook_help function missing in .module file

I think everything is perfect now.
Moving to RTBC.

+      $output .= '<h3>' . t('About') . '</h3>';
+      $output .= '<p>' . t('This module is provided as a workaround for https://www.drupal.org/project/webform/issues/3278864.
+
+        ') . '</p>';

That is not how links are added to translatable strings.

The shown sentence is not sufficient. At least the following one should be added.

It changes the UX of the out-of-the-box Webform configuration for the telephone element type.

+      $output .= '<h3>' . t('About') . '</h3>';  
+      $output .= '<p>'.  t('This module is provided as a workaround for  <a href="https://www.drupal.org/project/webform/issues/3278864" target="_blank">Issue page</a>') . '</p>';
+      return $output;

Placeholders are used also for URLs, for two reasons.

Reviewed MR 3. Looks good, +1 RTBC

I reviewed this, looks good, will merge MR 3 now.

Automatically closed - issue fixed for 2 weeks with no activity.