Make use of "excludeScrollbar" parameter from react-onclickoutside

[dan-diaz]

Is your feature request related to a problem? Please describe.
When clicking on the scrollbar to scroll a page, onClickOutside is triggered and closes the datepicker.

Describe the solution you'd like
react-onclickoutside offers the excludeScrollbar parameter to ignore scrollbar clicks.
I'm working on a Pull Request right now to enable this parameter and set as true by default.

Describe alternatives you've considered
none

Additional context
This parameter is only in effect when the user's screen has scrollbars constantly visible.
If your scrollbars hide automatically, a click in their area does not count as a scrollbar click and will still trigger onClickOutside. And this is because of how react-onclickoutside compares the click coordinates to the documentElement. And documentElement clientWidth/clientHeight are different depending on your default scrollbar settings.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.