Patch #1389 Clear Field not clickable in Firefox (#1437)
Patch #1389 Clear Field not clickable in Firefox (#1437)

* Clear Icon not clickable in Firefox - Bugfix #1389

Bugfix for #1389 .
Clear Icon is not clickable in Firefox because hidden button has no width/height.

* Fixed missspelled word

Hacker0x01/react-datepicker,Hacker0x01/react-datepicker,Hacker0x01/react-datepicker