fix: regenerate item/block palettes from server registry data for 1.21.9

MC 1.21.9 changed how some items and blocks are registered — 24 block
items (copper bars/chains/lanterns variants, potted azalea renames) and
additional blocks are now registered outside of Items.java/Blocks.java
field declarations, making the previous source-field-order-based palette
generation produce incorrect protocol IDs.

Regenerated ItemPalette1219.cs using server registries.json (1488 items,
up from 1464) and Palette1219.cs using blocks.json (1166 blocks with
correct state IDs). Added 37 new enum values to ItemType.cs (35 new +
DryShortGrass/DryTallGrass for backward compat) and 9 new values to
Material.cs.

Verified all item/block/entity identification against a 1.21.10 server.

Made-with: Cursor

MinecraftClient/Mapping/Material.cs

@@ -165,9 +165,9 @@ namespace MinecraftClient.Mapping
         BubbleCoralFan,
         BubbleCoralWallFan,
         BuddingAmethyst,
-        Bush, // bush
+        Bush,
         Cactus,
-        CactusFlower, // cactus_flower
+        CactusFlower,
         Cake,
         Calcite,
         CalibratedSculkSensor,
@@ -416,7 +416,7 @@ namespace MinecraftClient.Mapping
         FireCoralBlock,
         FireCoralFan,
         FireCoralWallFan,
-        FireflyBush, // firefly_bush
+        FireflyBush,
         FletchingTable,
         FlowerPot,
         FloweringAzalea,
@@ -522,7 +522,7 @@ namespace MinecraftClient.Mapping
         LargeFern,
         Lava,
         LavaCauldron,
-        LeafLitter, // leaf_litter
+        LeafLitter,
         Lectern,
         Lever,
         Light,
@@ -914,7 +914,7 @@ namespace MinecraftClient.Mapping
         SeaLantern,
         SeaPickle,
         Seagrass,
-        ShortDryGrass, // short_dry_grass
+        ShortDryGrass,
         ShortGrass,
         Shroomlight,
         ShulkerBox,
@@ -1009,13 +1009,13 @@ namespace MinecraftClient.Mapping
         SuspiciousGravel,
         SuspiciousSand,
         SweetBerryBush,
-        TallDryGrass, // tall_dry_grass
+        TallDryGrass,
         TallGrass,
         TallSeagrass,
         Target,
         Terracotta,
-        TestBlock, // test_block
-        TestInstanceBlock, // test_instance_block
+        TestBlock,
+        TestInstanceBlock,
         TintedGlass,
         Tnt,
         Torch,
@@ -1161,7 +1161,7 @@ namespace MinecraftClient.Mapping
         WhiteTulip,
         WhiteWallBanner,
         WhiteWool,
-        Wildflowers, // wildflowers
+        Wildflowers,
         WitherRose,
         WitherSkeletonSkull,
         WitherSkeletonWallSkull,