Fixed touch scrolling issue in Surface and WP devices (#18737)
Fixed by using pointerevents instead of touchevents when the browser is IE11,
or Edge. Also added touch-action: none; css rules into escalator.css to prevent
default touch behaviour on IE11 and Edge. Does not affect IE8 to IE10 browsers,
behaviour on those will stay the same as before the fix.
No new unit tests since we do not have automatic touch testing possibilities yet.
Please test manually with Surface: IE11 and Edge, use for example uitest:
com.vaadin.tests.components.grid.basics.GridBasicsomponents.grid.basics.GridBasics