New opendream pragmas (#20260)

Enabled new opendream pragmas
Fixed some runtime access check operators (`:`) around the codebase (not
all, some are unfixable as they're used in macros)

No player facing changes (hopefully)

code/game/objects/items/weapons/handcuffs.dm

@@ -141,7 +141,7 @@
 	log_attack("[s] ([H.ckey])")
 
 	if(O.take_damage(3, 0, damage_flags = DAMAGE_FLAG_SHARP|DAMAGE_FLAG_EDGE, used_weapon = "teeth marks"))
-		H:UpdateDamageIcon()
+		H.UpdateDamageIcon()
 
 	last_chew = world.time
 

code/game/objects/items/weapons/storage/fancy.dm

@@ -229,7 +229,7 @@
 /obj/item/storage/box/fancy/crayons/attackby(obj/item/attacking_item, mob/user)
 	if(istype(attacking_item, /obj/item/pen/crayon))
 		var/obj/item/pen/crayon/W = attacking_item
-		switch(W:colourName)
+		switch(W.colourName)
 			if("mime")
 				to_chat(usr, "This crayon is too sad to be contained in this box.")
 				return

code/game/objects/items/weapons/storage/storage.dm

@@ -254,7 +254,8 @@
 	for(var/obj/item/gift/G in src)
 		. += G.gift
 		if (istype(G.gift, /obj/item/storage))
-			. += G.gift:return_inv()
+			var/obj/item/storage/gift_storage = G.gift
+			. += gift_storage.return_inv()
 
 /obj/item/storage/proc/show_to(mob/user as mob)
 	if(user.s_active != src)