Fixed Revelations floors having the wrong backdrop in boss and miniboss rooms

- Fixed the void trapdoor sprite overwriting the sprite for enemy Portals
- Fixed error message with Sheol L floor file
- Hopefully fixed delirium sound for real this time (I hope??)

- Fixed glitchy bridge graphics in Corpse
- Fixed some Ashpit boss rooms having an ugly cutoff

- removed lily pads from Flooded Caves (they didn't look all that good)
- fixed Corpse blood pits not having the bubbling effect

- Improved Cellar, Burning Basement and Ashpit boss rooms
- Flooded Caves pits can now have decorative lily pads
- Fixed Delirium sound playing when entering some rooms

- better support for fiend folio backdrops and eternal champions arena backdrop
- new void trapdoor

dumb fixes for dumb fiend folio

- fixed Dark Room props not spawning
- Downpour mist is now fainter

- flooded caves mist is fainter
- hopefully fixed eternal arenas not using the correct backdrop (i cant get them to appear im not gonna sit here for an hour trying to get one...)

- fixed some room graphics not appearing
- reduced visual effects for mines, flooded caves, downpour
- tweaked lighting for mausoleum, gehenna, flooded caves, depths, necropolis
- fixed ashpit ash pits in ashpit not appearing where there should be ashpit ash pits in rooms with dust enemies and ashpit non ash pits, ashpit
- removed testing function i forgor to remove :skull: