Feature Request: Option to set the number of media attachments and template per post

[VirtualWolf]

What

Rather than having a single global set of settings for the post template and number of media attachments to attach to a Fediverse post from this plugin, it would be nice to be able to set these per post when you're publishing a Wordpress blog post that will federate.

Why

The type of blog posts I write varies: some are just text and can federate in their entirety, but others are longer and may have images interspersed throughout, but these end up looking pretty terrible when federated because the images aren't inline as they are in the blog post and there are only a limited number of them that will be attached. In the latter case it would be really nice to be able to change the ActivityPub template just for that specific post, to show just the excerpt with a link to the full post and not attach any images at all.

How

The current Settings > Activities > "Post content" and "Media attachments" sections could be included in the "Fediverse" panel when writing a blog post and would default to what's set in the plugin settings but would be able to be set per post.