Koenig - Don't display toolbar for keyboard selections
Koenig - Don't display toolbar for keyboard selections

refs https://github.com/TryGhost/Ghost/issues/9505
- implements similar `mousemove` event handling in `{{koenig-toolbar}}` as we use in `{{koenig-card}}` to not show the toolbar until we are sure there's mouse interaction

acburdine/Ghost-Admin,kevinansfield/Ghost-Admin,kevinansfield/Ghost-Admin,TryGhost/Ghost-Admin,acburdine/Ghost-Admin,TryGhost/Ghost-Admin