Updated the reducer (#431)
Updated the reducer (#431)

When the drawer opens / close, the result of AppNavigator.router.getStateForAction(action, state); is null. So the nav state in the store is null which causes errors. This solves that.
half-shell/react-navigation,Steviey/win-react-navigation,Steviey/win-react-navigation,Steviey/win-react-navigation,half-shell/react-navigation,half-shell/react-navigation