Makes Ration Heaters smaller. (shiptest-ss13#3486)

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Edits ration heaters to be able to be put back inside of ration packs.

It's really, really annoying that you can take ration heaters OUT of
ration packs, but CANNOT put them back in. This fixes this by making
them both the same size as the rations themselves, and adding ration
heaters to the list of accepted items that can be put in ration packs.

:cl:
code: Changes flameless ration heaters to "small" items
code: Adds flameless ration heaters to the ration pack item whitelist.
/:cl:

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

@@ -28,10 +28,9 @@
 	. = ..()
 	var/datum/component/storage/STR = GetComponent(/datum/component/storage)
 	STR.max_items = 7
-	// [CELADON-EDIT] - CELADON_QOL
-	// STR.set_holdable(list(/obj/item/reagent_containers/food)) // CELADON-EDIT - ORIGINAL
-	STR.set_holdable(list(/obj/item/reagent_containers/food, /obj/item/ration_heater))
-	// [/CELADON-EDIT]
+	STR.set_holdable(list(
+		/obj/item/reagent_containers/food,
+		/obj/item/ration_heater))
 	STR.locked = TRUE
 	STR.locked_flavor = "sealed closed"
 

code/modules/food_and_drinks/kitchen_machinery/microwave.dm

@@ -365,6 +365,7 @@
 	icon_state = "ration_heater"
 	grind_results = list(/datum/reagent/iron = 10, /datum/reagent/water = 10, /datum/reagent/consumable/sodiumchloride = 5)
 	heat = 3800
+	w_class = WEIGHT_CLASS_SMALL
 	var/obj/item/tocook = null
 	var/mutable_appearance/ration_overlay
 	var/uses = 3