✨ Add Bluesky support

[jpdvp]

Added Bluesky support (Discussion 120)

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[skyth3r]

@jpanther can we know what we need to get this merged in?

Also @jpdvp when I submitted this PR I added these colours based on the colours used in Bluesky (specifically the 'New post' floating action button. Not super important but I thought the small hint of gradient made the button look fantastic 🎨

 background: #0084ff;
 background: linear-gradient(2.35619rad, #5a72fa 0%, #0084ff 100%);