Add description to bucket to make it show in creative inventory

mods/bucket/init.lua

@@ -56,6 +56,7 @@ function bucket.register_liquid(source, flowing, itemname, inventory_image)
 end
 
 minetest.register_craftitem("bucket:bucket_empty", {
+	description = "Emtpy bucket",
 	inventory_image = "bucket.png",
 	stack_max = 1,
 	liquids_pointable = true,