Hopo Better Underwater Ruins

--- Tweaks and fixed crash --- ♦ One of my strangest pieces actually got a drowned spawner, now this has been replaced with the new trial spawner ♦ Fixed a crash, this one was pretty much the same as my mineshaft one, pretty sad, finally it's fixed, seems like minecraft don't like structures to big sometimes. ♦ Small changes on loot tables, like fireworks being too laggy sometimes, dried kelp (bad loot) ♦ Small Warm ruins have the same rarity as the small cold ruins now