Spigot 1.21 support was added in the last version, a patch has been applied from NBT API so that Paper now works with 1.21
To avoid server stalling with complex panels, data now only works with players who have logged into the server before. (Any player that has also been cached by the server will also work).
Added %cp-uuid-<playerName>% placeholder to return player's UUID, or returns 'unknown' if the player hasn't logged into the server before. Useful as now logic can now be used in panels with this, as if the player doesn't exist or hasn't logged in before, the placeholder will return 'unknown'.
Removed allow-unsafe-minimessage requirement in config.yml as it would stop functionality without being set to true, and isn't required anymore