No Kebab

• Ported to MC 1.21, marked previous branch as incompatible.

• Added the command /nokebab give.
  Mostly for debug purposes, just a shorthand to give yourself a painting with an invalid variant. With item components, the equivalent /give command has become quite longer.
• Custom DataTrackers can be disabled in a config file. Which disables the ability to see invalid paintings and their id in the world.
  Since 1.20.5, vanilla clients now crash when receiving data from modded trackers, making it impossible to broadcast data about missing paintings while keeping the mod optional on clients. The feature will be disabled by default on dedicated servers, but remains enabled by default on clients (singleplayer and LAN).

• Marked this branch as incompatible with 1.20.5

• Added the command /nokebab migrate
• Fixed some benign warnings when running on server-only environnement.

Missing ID label is now rendered with a full outline, for better lisibility.

• No-Kebab is now fully optional on clients. Clients without the mod will still see Kebab as missing paintings.
• Clients with the mod installed will be able to see the missing painting's ID
• Removed HerobrMissingno from the painting registry.

Initial release