AttackFM 0.5.20

• "Save image" on the invite card now saves on Android — into Photos, in an AttackFM album — and says so. It used to do nothing.
• Invite a friend is a share glyph in the header beside the notification bell (0.5.19).
• Shared playlists: share a list with friends on your server as viewers or editors, and build it together (0.5.18; needs the server update).
• Invite card follows the real join flow and prints a live invite code; the lyrics button toggles the lyrics face (0.5.17).