Fix back button listener in Toolbar (#197)
Fix back button listener in Toolbar (#197)

* 	Fix back button listener in Toolbar

Currently it makes back button unresponsive if you open the search bar a close it.

* Fix lint errors

* Fix lint errors

xotahal/react-native-material-ui,xvonabur/react-native-material-ui,kenma9123/react-native-material-ui