Auto-acknowledgment for moderated comments via widget or email

Description: As a moderator who reviews incoming comments, I want an option to automatically send a short acknowledgment to commenters (via the comment widget and/or email) confirming that their submission was received and is pending moderation, so that commenters have immediate feedback and understand the next steps. Problem: When comment moderation is enabled, commenters may not receive any confirmation that their submission was received or that it is awaiting review. This lack of feedback causes confusion, duplicate submissions, and support inquiries. Benefit: Providing an automatic acknowledgment improves transparency and trust, reduces confusion and repeated submissions, and enhances the overall commenter experience by clearly communicating that the comment is in the moderation queue.