Partially reverts the scarcity PR with respect to the bar. (#20788)

From the feedback I've been seeing while playing, the bar has become
*unfun* to play or to interact with. I don't think the scarcity PR has
helped improve player experience, at least for the bar. I've re-added
the drinks that were removed, including the cabinet of beer yokes in the
back.

HOWEVER. There are less of all of them, encouraging resupplies if
there's heavy use.

!!!! I have not touched any other changes the scarcity PR introduced.
Medbay and Engineering scarcity remain. Anything added to cargo remains
purchasable, and the lavatory vendor still exists. !!!!

Supersedes #20786

code/modules/reagents/reagent_containers/food/drinks/carton.dm

@@ -69,6 +69,18 @@
 	icon_state = "applejuice"
 	reagents_to_add = list(/singleton/reagent/drink/applejuice = 100)
 
+/obj/item/reagent_containers/food/drinks/carton/watermelonjuice
+	name = "watermelon juice"
+	desc = "Juice from a watermelon. Not to be confused with water."
+	icon_state = "watermelonjuice"
+	reagents_to_add = list(/singleton/reagent/drink/watermelonjuice = 100)
+
+/obj/item/reagent_containers/food/drinks/carton/bananajuice
+	name = "banana juice"
+	desc = "Juice from a banana. However that works."
+	icon_state = "bananajuice"
+	reagents_to_add = list(/singleton/reagent/drink/banana = 100)
+
 /obj/item/reagent_containers/food/drinks/carton/fatshouters
 	name = "fatshouters milk carton"
 	desc = "Fatty fatshouters milk in a carton."