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

code/modules/paperwork/paper_bundle.dm

@@ -156,13 +156,13 @@
 			insert_sheet_at(usr, page+1, in_hand)
 		else if(page != pages.len)
 			page++
-			playsound(src.loc, "pageturn", 50, 1)
+			playsound(src.loc, /decl/sound_category/page_sound, 50, 1)
 	if(href_list["prev_page"])
 		if(in_hand && (istype(in_hand, /obj/item/paper) || istype(in_hand, /obj/item/photo)))
 			insert_sheet_at(usr, page, in_hand)
 		else if(page > 1)
 			page--
-			playsound(src.loc, "pageturn", 50, 1)
+			playsound(src.loc, /decl/sound_category/page_sound, 50, 1)
 	if(href_list["remove"])
 		var/obj/item/W = pages[page]
 		usr.put_in_hands(W)

code/modules/paperwork/photocopier.dm

@@ -106,7 +106,7 @@ VUEUI_MONITOR_VARS(/obj/machinery/photocopier, photocopiermonitor)
 		if(toner <= 10) //allow replacing when low toner is affecting the print darkness
 			to_chat(user, SPAN_NOTICE("You insert \the [O] into \the [src]."))
 			flick("photocopier_toner", src)
-			playsound(loc, "switchsounds", 50, 1)
+			playsound(loc, /decl/sound_category/switch_sound, 50, 1)
 			var/obj/item/device/toner/T = O
 			toner += T.toner_amount
 			user.drop_from_inventory(O,get_turf(src))

code/modules/paperwork/photography.dm

@@ -96,7 +96,7 @@ var/global/photo_count = 0
 		var/mob/M = usr
 		if(!( istype(over_object, /obj/screen) ))
 			return ..()
-		playsound(loc, "rustle", 50, 1, -5)
+		playsound(loc, /decl/sound_category/rustle_sound, 50, 1, -5)
 		if((!( M.restrained() ) && !( M.stat ) && M.back == src))
 			switch(over_object.name)
 				if(BP_R_HAND)