Off-Hand support for Bedrock.

While i understand it could be hard to implement for mobile players, maybe(through im not sure) a button to swap the selected item for the off-hand's or viceversa(just like on Java) could be enough, and besides, we could see the shield's durability without opening inventory, and it could be great overall, doesn't need right click to use shield, just being able to use the off-hand like on java is enough(in my opinion).