Add keybind for swapping hands in the other direction (#37588)

add swap hands reverse

Content.Shared/Input/ContentKeyFunctions.cs

@@ -35,6 +35,7 @@ namespace Content.Shared.Input
         public static readonly BoundKeyFunction OpenBelt = "OpenBelt";
         public static readonly BoundKeyFunction OpenAHelp = "OpenAHelp";
         public static readonly BoundKeyFunction SwapHands = "SwapHands";
+        public static readonly BoundKeyFunction SwapHandsReverse = "SwapHandsReverse";
         public static readonly BoundKeyFunction MoveStoredItem = "MoveStoredItem";
         public static readonly BoundKeyFunction RotateStoredItem = "RotateStoredItem";
         public static readonly BoundKeyFunction SaveItemLocation = "SaveItemLocation";