Suno, Spotify and SoundCloud in social links

Three new options in the social links picker, for anyone publishing music.

• Suno, Spotify and SoundCloud are now selectable, each with its own icon
• Fixed a gap where a platform could show a generic share symbol on your published page instead of its real logo
• Links saved under the old name Twitter now move to X automatically the next time you save

If you added one of these as an ordinary link before, you can switch it to a social link and get the proper icon.