Posting & Link Previews — Fixes + New Improvements 🚀

@Andrew Miles thanks mate!
We just shipped a batch of fixes and upgrades to make posting smoother — especially around links and videos. Here's what's new:
✨ Link previews are here — paste a link and you'll now see a rich preview card (title, description, image) right inside the composer as you type, and on the post itself. YouTube & Vimeo links turn into playable embeds automatically.
🎬 Video posts fixed — selecting a YouTube/Vimeo video from the gallery no longer gets rejected. You can post them normally now.
⌨️ Editor typing fixed — after pasting a link you can finally press Enter to start a new line (no more needing to type a space first).
📱 Mobile GIF picker fixed — the GIF panel no longer gets cut off on the edge of the screen.
🔗 More reliable previews — links that were stubbornly not previewing (slow-loading pages) now work, and any temporary hiccups recover on their own.
🔒 Behind the scenes — added protection so the link-preview service can't be abused, keeping things fast and secure for everyone.
Thanks for all the bug reports — keep them coming! 🙌