tagfer-app/src/config/router.js

import { createStackNavigator, createAppContainer } from 'react-navigation';
import WelcomeScreen from '../screens/onboaring/WelcomeScreen';
import LoginScreen from '../screens/auth/LoginScreen';
import ForgotPasswordScreen from '../screens/auth/ForgotPasswordScreen';

const StackNavigator = createStackNavigator({
  welcome: WelcomeScreen,
  login: LoginScreen,
  forgotPassword: ForgotPasswordScreen
});

const AppNavigator = createAppContainer(StackNavigator);

export default AppNavigator;