Cmd/Ctrl+Z works in the site editor preview too

In the Site editor, Cmd/Ctrl+Z and Cmd/Ctrl+Shift+Z now undo and redo your changes after you click in the store preview too. Until now only the "Undo" and "Redo" buttons worked there. In one of the store's own fields, such as the search box, the keys undo what you typed in it, as everywhere else.