fixed world layer crash

fixed fire ball attack on ending of stage 4 being triggered multiple times

fixed toilet items spawning method in stages 1 and stage 4 messing with entwatch
fixed poison item slowing zombies forever
stop playing augh? sound at stage3/6 after a while since zombies can continuously spam it
fixed ladder that was invisible in stage3/6
remove bhop prevention on stage2/5 cave
reworked teleport at stage2/stage5 bridge

fixed slow effect in human items
increased delay of AFK teleport in stage 2 / stage 5 by 15s

nerfed bosses HP by at least 10/12 points per player
increased stage 3 boss hitbox size
fixed beam freezing zombies forever
fixed zombies being able to climb up the stage 1/stage 4 boss bridge
fixed stage 2 / stage 4 ending
decreased stage 3 music volume
fixed spawn particle messing end of match screen
fixed roughness in HL 2 statue model's material
reduced brightness a bit in a texture
replaced broken refract waterfall textures with normal waterfall textures and removed some of them

fixed stage 1/4 zombie tp bug near boss fight
fixed stage 3/6 trigger_hurt that might kill zombie items early on

Created ze_v0u0v_p.