move all crates to crates.dmi

code/modules/mining/mine_items.dm

@@ -200,7 +200,6 @@
 /obj/structure/closet/crate/miningcar
 	desc = "A mining car. This one doesn't work on rails, but has to be dragged."
 	name = "mining car (not for rails)"
-	icon = 'icons/obj/storage.dmi'
 	icon_state = "miningcar"
 	density = 1
 	icon_opened = "miningcaropen"

code/modules/mob/living/simple_animal/hostile/mimic.dm

@@ -1,7 +1,7 @@
 /mob/living/simple_animal/hostile/mimic
 	name = "crate"
 	desc = "A rectangular steel crate."
-	icon = 'icons/obj/storage.dmi'
+	icon = 'icons/obj/crates.dmi'
 	icon_state = "crate"
 	icon_living = "crate"