Blur embeds for NSFW content server-side

When checking the OpenGraph embedding of any NSFW content on the platform, previews are shown uncensored, which can cause confusion for creators when their dashboard shows the previews blurred, and they assume the link is safe to share in spaces where blatant NSFW imagery is not appropriate.

I believe either the dashboard could be updated to show NSFW content as not-logged-in users would see it, or server-side blurring of embed images should be done to ensure shared links behave identical to other mature content across the platform.