let's bring #longform (text) support to the #photoverse

let's bring #longform (text) support to the #photoverse

(this is not (mainly) about long texts on #pixelfed or #vernissage (they can both fall back to show the summary), it is about supporting image posts with the object type: `Article`)

* https://github.com/VernissageApp/VernissageServer/pull/442
* https://github.com/pixelfed/pixelfed/pull/6458

https://codeberg.org/fediverse/fep/src/branch/main/fep/b2b8/fep-b2b8.md

#fediverse #activitypub