How about adding one more option to the undo picker to go back to original?

[JohnWilliston]

I've been using the XXiaoA/atone.nvim plugin for a while and love its ability to let me walk back to any point in my undo history, even all the way to the original file. I thought I could replace that with the snacks undo picker (once I learned it existed!), but the farthest back I can go with the snacks undo picker is the first change. How about an option to choose the original file too? I might tackle this myself as a pull request but thought I'd ask in case it's already been done, and I just can't find it.