[IDED] Replaces UZI domain reward with ballistic chameleon gun (#87600)

## About The Pull Request

Replaces the mini-UZI beach battle domain reward with a ballistic
chameleon gun.

Also added a separate possible reward for an uzi bitrunning disk.

code/modules/bitrunning/objects/disks.dm

@@ -185,3 +185,9 @@
 		/obj/item/crusher_trophy/vortex_talisman,
 		/obj/item/crusher_trophy/ice_demon_cube,
 	)
+
+/obj/item/bitrunning_disk/item/mini_uzi
+	name = "bitrunning gear: mini-uzi"
+	selectable_items = list(
+		/obj/item/gun/ballistic/automatic/mini_uzi,
+	)

code/modules/bitrunning/virtual_domain/domains/island_brawl.dm

@@ -13,10 +13,10 @@
 		/obj/item/toy/beach_ball = 2,
 		/obj/item/clothing/shoes/sandal = 1,
 		/obj/item/clothing/glasses/sunglasses = 1,
-		/obj/item/gun/ballistic/automatic/mini_uzi = 1,
+		/obj/item/gun/energy/laser/chameleon/ballistic_only = 1,
+		/obj/item/bitrunning_disk/item/mini_uzi = 1,
 	)
 
-
 /datum/lazy_template/virtual_domain/island_brawl/setup_domain(list/created_atoms)
 	for(var/obj/effect/mob_spawn/ghost_role/human/virtual_domain/islander/spawner in created_atoms)
 		custom_spawns += spawner