Dropper, flour and ration fixes (#3413)

-fixes being able to use dropprs on synth
-fixes flour stacking on the same title
-fixes liquid ration having far less nutriment that it should

code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Food-Drinks.dm

@@ -354,6 +354,9 @@
 
 /datum/reagent/nutriment/flour/touch_turf(var/turf/simulated/T)
 	if(!istype(T, /turf/space))
+		if(locate(/obj/effect/decal/cleanable/flour) in T)
+			return
+
 		new /obj/effect/decal/cleanable/flour(T)
 
 /datum/reagent/nutriment/coco

code/modules/reagents/reagent_containers/dropper.dm

@@ -38,6 +38,9 @@
 				if(istype(target, /mob/living/carbon/human))
 					var/mob/living/carbon/human/victim = target
 
+					if(victim.isSynthetic())
+						return
+
 					var/obj/item/safe_thing = null
 					if(victim.wear_mask)
 						if (victim.wear_mask.body_parts_covered & EYES)

code/modules/reagents/reagent_containers/food/snacks.dm

@@ -4353,7 +4353,7 @@
 	filling_color = "#A8A8A8"
 	center_of_mass = list("x"=16, "y"=15)
 	nutriment_desc = list("chalk" = 3)
-	nutriment_amt = 3
+	nutriment_amt = 10
 
 /obj/item/weapon/reagent_containers/food/snacks/liquidfood/New()
 	..()