Render link preview description as HTML

[Porrumentzio]

Issue Summary

When previews of links to posts or communities are loaded, they show unrendered markdown markup:

Steps to Reproduce

1. Paste a link of a post/community with markdown markup (for example https://lemmy.eus/c/antiespezismoa) into some app/website where previews are displayed (chat apps, discourse forums...)
2. See how the unrendered markup is showed

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Is there any way to make that markdown rendered into previews, or at least deleting it (this is more difficult)?

[dessalines]

I spose we could convert the markdown to html for the description field there.

[Porrumentzio]

Now that the rendering has changed to HTML, the same problem remains, but now with unrendered HTML

Seems that the problem is not which markup use, but whether it is rendered