- Hide posts with a future ID (scheduled posts) from the blog.
- Hide :VISIBILITY: mention posts from the public blog, except when the
post has :GROUP:, where visibility does not apply.
- Extract #+PINNED: and show the pinned post first with an indicator.
- :BOT: posts already render their body as a regular post and the
property is never displayed, as the spec requires.
- Changed 🔗 to 📅 for post timestamp display
- Fixed org-social mention links to include space after username
Prevents text from being concatenated with the mention link
