/Icon/ Folder cleansing crusade part, I think 4; post-wallening clean-up. (#85823)

Hello everybuddy, your number three rated coder-failure here to clean up
some mess. This PR accomplishes some of the more major structural clean
up changes I wanted to do with /obj/ folder, but decided to wait on
until wallening gets merged, and so, time has come. Several things to
still be done, although I know these cleaning PR's are quite a load, so
will wait for this one to get done with first.

## Why It's Good For The Game
Saner spriters, better sprites, less annoyance. Also deleted a whole
load of redundancy this time around, a lot of sprites which existed
simultaniously in two places now got exit their quantum superposition.

code/modules/mob/living/basic/icemoon/ice_demon/ice_demon_abilities.dm

@@ -11,7 +11,7 @@
 /datum/action/cooldown/mob_cooldown/ice_demon_teleport
 	name = "Bluespace Teleport"
 	desc = "Teleport towards a destination target!"
-	button_icon = 'icons/obj/ore.dmi'
+	button_icon = 'icons/obj/mining_zones/ore.dmi'
 	button_icon_state = "bluespace_crystal"
 	cooldown_time = 3 SECONDS
 	melee_cooldown_time = 0 SECONDS