Bugfix/issue 22899/vendor restocking unit's description is misleading (#23130)

* assigns the item_state var the same color assigned to the icon_state var in the lighter/random/New() proc

* fixes the typo in deployable.dm

* oops

* changed the code in get_part_rating() so that non-full restock values get returned

* Changed vending_items.dm so that the vendor restocking unit's description isn't always full

* Update code/game/objects/items/weapons/vending_items.dm

lewcc suggestion

Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>

---------

Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>

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

@@ -36,8 +36,6 @@
 		. += "It can restock [num] item\s."
 
 /obj/item/vending_refill/get_part_rating()
-	if (!products || !contraband || !premium)
-		return INFINITY
 	. = 0
 	for(var/key in products)
 		. += products[key]
@@ -46,6 +44,9 @@
 	for(var/key in premium)
 		. += premium[key]
 
+	if(. > 30)
+		return INFINITY
+
 /obj/item/vending_refill/boozeomat
 	machine_name = "Booze-O-Mat"
 	icon_state = "refill_booze"