Increase width of toggle switch widget
Increase width of toggle switch widget

Toggle is a 1.5em circle so it should travel at least this distance.
Increased from 1em to 2em.

Change-Id: I2bc50c94eeb80990904112c16e529e3efd2a06df

wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui