history-controls: Use correct actions
The back/forward actions were moved from the window to the slot in commit [1], but the action on the menu items for the back and forward menus were inadvertently left on the window.
[1] 2d6f4b82
The back/forward actions were moved from the window to the slot in commit [1], but the action on the menu items for the back and forward menus were inadvertently left on the window.
[1] 2d6f4b82