Render Article types in Network Feed

[TomCasavant]

I think right now we only handle Note objects

postmarks/src/routes/activitypub/inbox.js

Line 226 in 58d1ca1

if (req.body.type === 'Create' && req.body.object?.type === 'Note') {

But I think it'd be cool to see an entire article in my network feed that I could bookmark directly from postmarks