Hello 
This is a really useful feature, thanks 
I only have a really minor suggestion to the where it shows the ${original_post}. I think it would be better if it shows the raw content or both with hide details raw version because than user can easily copy it to composer and makes changes. I made this change on my site with puts this into ```.
https://github.com/discourse/discourse/commit/ddfe2f8afc01b92862ac2927a37eb7636f184866
Thank you 