Refactors sound groups to use decls instead of a massive switch with dozens of global lists. (#9702)

code/game/objects/structures/crates_lockers/closets/secure/personal.dm

@@ -82,7 +82,7 @@
 		if(emag_act(INFINITY, user, "The locker has been sliced open by [user] with \an [blade]!", "You hear metal being sliced and sparks flying."))
 			blade.spark_system.queue()
 			playsound(loc, 'sound/weapons/blade.ogg', 50, 1)
-			playsound(loc, "sparks", 50, 1)
+			playsound(loc, /decl/sound_category/spark_sound, 50, 1)
 	else
 		to_chat(user, "<span class='warning'>Access Denied</span>")
 	return

code/game/objects/structures/crates_lockers/closets/secure/secure_closets.dm

@@ -170,7 +170,7 @@
 			if(emag_act(INFINITY, user, "<span class='danger'>The locker has been sliced open by [user] with \an [W]</span>!", "<span class='danger'>You hear metal being sliced and sparks flying.</span>"))
 				spark(src, 5)
 				playsound(loc, 'sound/weapons/blade.ogg', 50, 1)
-				playsound(loc, "sparks", 50, 1)
+				playsound(loc, /decl/sound_category/spark_sound, 50, 1)
 		else if(W.iswelder())
 			var/obj/item/weldingtool/WT = W
 			if(WT.isOn())

code/game/objects/structures/crates_lockers/crates.dm

@@ -351,7 +351,7 @@
 		add_overlay(emag)
 		add_overlay(sparks)
 		CUT_OVERLAY_IN(sparks, 6)
-		playsound(loc, "sparks", 60, 1)
+		playsound(loc, /decl/sound_category/spark_sound, 60, 1)
 		locked = 0
 		broken = 1
 		to_chat(user, "<span class='notice'>You unlock \the [src].</span>")