Open
Description
What
This is a follow-up to #900.
Now that we handle content warnings in the ActivityPub representation of posts, I think it would be nice to add support to hide that content on the site itself.
Why
It's nice to be able to hide content from posts on the Fediverse with a simple option in the post editor. Folks then see the content hidden behind a title in their Fediverse client of choice. However, if their client sends them to see the full post on the site, there will not be any content warning there ; the content will be displayed as is.
How
In order to make things as simple and easy to maintain as possible, maybe we could leverage the Details block from core:
https://wordpress.org/documentation/article/details-block/