NOTE: Please use /cec convertall after install plugin if you don't want lose data player in future! (Only for old users)

+ Change Bukkit Stream API to Data Component from Paper to support multi-version.

+ Add some key on config.yml and lang (Please delete old file or update by yourself).
+ Add /cec open permission.
+ Add overflow items to keep items if player got downgrade permission.

+ Fix missing key lang.
+ Fix convert data from <1.21.4 to 1.21.5
+ Fix new player can't open enderchest.