Add support for bluesky embed posts

[just1602]

https://bsky.app/profile/bsky.app/post/3kq7aeuwbg42k

https://embed.bsky.app/

[just1602]

This post : https://bsky.app/profile/crimethinc.bsky.social/post/3kqg74b27vo2a

Generate the following embed, we should probably do some testing to decide what we keep and what we ditch:

<blockquote class="bluesky-embed" data-bluesky-uri="at://did:plc:usktoienjig6rm5cxm46j3zl/app.bsky.feed.post/3kqg74b27vo2a" data-bluesky-cid="bafyreihhx2u624di4nqduurxuycteku3i562bdkw22ytpw6tjvgl3jrbrm"><p lang="en">We salute the courage of the students occupying Columbia University in protest against the university&#x27;s complicity in the genocide in Gaza. The New York City police have surrounded the area and violently arrested supporters, but the occupiers stand firm.

Updates on telegram:

t.me/cuadencampment<br><br><a href="https://bsky.app/profile/did:plc:usktoienjig6rm5cxm46j3zl/post/3kqg74b27vo2a?ref_src=embed">[image or embed]</a></p>&mdash; CrimethInc. Ex-Workers&#x27; Collective (<a href="https://bsky.app/profile/did:plc:usktoienjig6rm5cxm46j3zl?ref_src=embed">@crimethinc.bsky.social</a>) <a href="https://bsky.app/profile/did:plc:usktoienjig6rm5cxm46j3zl/post/3kqg74b27vo2a?ref_src=embed">Apr 18, 2024 at 12:14 p.m.</a></blockquote><script async src="https://embed.bsky.app/static/embed.js" charset="utf-8"></script>