Redo and Undo Botton for board feature

I believe we all had the issue when we accidentally deleted the phone number, email or other important information from an item card. If we had a redo and undo button, this will be a life saver!

Way to implement it: Have the redo and undo button on the top of the board with the rest of the tools. As well as redo and undo buttons in the item card view.