scroll method
Scrolls this element in x and/or y direction by pixels.
ScrollOptions is currently not supported. https://developer.mozilla.org/en-US/docs/Web/API/Element/scroll
Implementation
@override
Future<void> scroll({int? x, int? y}) async =>
_retryWhenStale(() => _driver.execute(
'arguments[0].scrollLeft += ${x ?? 0};'
'arguments[0].scrollTop += ${y ?? 0};'
'arguments[0].dispatchEvent(new Event("scroll"));',
[_single]));