fix(ngAria): trigger digest on ng-click via keypress, pass $event to expression

Minor improvement to ng-click directive from ngAria. Now, if bindings are updated
during the click handler, the DOM will be updated as well. Additionally, the $event
object is passed in to the expression via locals, as is done for core event directives.

Closes #10442
There would be a problem with `replace: true` directives, which has been reported for other places where we do this, like ngModel. It's a trade-off, perf vs correctness