Redesign biome and update

- Updates to 1.21.3
- Biome changes with correct colours

data/herohost/function/tnt/get_tnt.mcfunction

@@ -0,0 +1,12 @@
+# --- HeroGames - Copyright (c) HeroHost team (code provided by HeroChris). ---
+
+# effects
+playsound minecraft:entity.firework_rocket.launch record @a ~ ~ ~ 1 1 1
+particle minecraft:totem_of_undying ~ ~1 ~ 0 0 0 1 30 normal
+
+# hitback cooldown
+effect give @s weakness 1 2 true
+
+# reset
+advancement revoke @s only herohost:tnt/get_tnt
+tag @s add hc.get_tnt