Geyser

Changes:

• d53a1a5 Start on 1.21.4 support by @onebeastchris
• feecc47 More work on 1.21.4 changes by @onebeastchris
• 48ae284 More changes - remove getPickItemComponents in WorldManager, separate additional and base component by @onebeastchris
• a9577a9 Merge remote-tracking branch 'refs/remotes/upstream/master' into feature/1.21.4 by @onebeastchris
• 77ffb60 Better immutability checks by @onebeastchris
• 289a749 start implementing new block breaking by @onebeastchris
• 650cb8d remove isValidRepairItem in favor of component, remove unneeded item tiers, deprecate repair items and tool tier in NonVanillaCustomItemData by @onebeastchris
• 5162aeb Merge remote-tracking branch 'refs/remotes/upstream/master' into feature/1.21.4 by @onebeastchris
• 84faeba More item changes, remove/deprecate more tooltier usages, change stored map colors by @onebeastchris
• be77e6b Load default item components by @onebeastchris
• d114ab9 send ServerboundPlayerLoadedPacket, update built-in-tags by @onebeastchris
• db246ff Update Properties/Blocks, re-include neoforge, target 1.21.4 release by @onebeastchris
• ee5c0e6 Start on block remapping, send ServerboundPlayerLoadedPacket on respawn/new logins by @onebeastchris
• ed3008f Finish mappings - let it build by @onebeastchris
• b469a61 Include item_data_components.json, target new mappings by @onebeastchris ... and 21 more