Let’s practice turning on tab navigation.
The App component must return a navigation container with a tab navigator.
There should two screens in the navigator.
First screen should be named USA, second - Canada.
First screen should display screens/USAStateScreen component, second - screens/CanadaProvincesScreen.
Do not change the screens/USAStateScreen and screens/CanadaProvincesScreen components

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App.js

import React from 'react';

export default function App() {
  return null;
}

app.json

{
  "expo": {
    "name": "1",
    "slug": "1",
    "version": "1.0.0",
    "orientation": "portrait",
    "icon": "./assets/icon.png",
    "splash": {
      "image": "./assets/splash.png",
      "resizeMode": "contain",
      "backgroundColor": "#ffffff"
    },
    "updates": {
      "fallbackToCacheTimeout": 0
    },
    "assetBundlePatterns": [
      "**/*"
    ],
    "ios": {
      "supportsTablet": true
    },
    "android": {
      "adaptiveIcon": {
        "foregroundImage": "./assets/adaptive-icon.png",
        "backgroundColor": "#FFFFFF"
      }
    },
    "web": {
      "favicon": "./assets/favicon.png"
    }
  }
}

screens/CanadaProvincesScreen/index.js

import React from 'react';
import { ScrollView, View, Text, StyleSheet } from 'react-native';

export default function CanadaProvincesScreen({ route: { params } }) {
  return (
    <View style={styles.container}>
      <Text style={styles.header}>Canada - Provinces and territories</Text>
      <ScrollView>
        <Text>Alberta</Text>
        <Text>British Columbia</Text>
        <Text>Manitoba</Text>
        <Text>New Brunswick</Text>
        <Text>Newfoundland and Labrador</Text>
        <Text>Northwest Territories</Text>
        <Text>Nova Scotia</Text>
        <Text>Nunavut</Text>
        <Text>Ontario</Text>
        <Text>Prince Edward Island</Text>
        <Text>Quebec</Text>
        <Text>Saskatchewan</Text>
        <Text>Yukon</Text>
      </ScrollView>
     </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    paddingVertical: 20,
    paddingHorizontal: 30,
  },
  header: {
    color: '#4730EB',
    marginBottom: 8,
    fontWeight: 'bold',
    fontSize: 20,
    textAlign: 'center',
  },
});

screens/USAStateScreen/index.js

import React from 'react';
import { ScrollView, View, Text, StyleSheet } from 'react-native';

export default function USAStateScreen({ route: { params } }) {
  return (
    <View style={styles.container}>
      <Text style={styles.header}>USA states</Text>
      <ScrollView>
        <Text>Alabama, Montgomery</Text>
        <Text>Alaska,	Juneau</Text>
        <Text>Arizona,	Phoenix</Text>
        <Text>Arkansas,	Little Rock</Text>
        <Text>California,	Sacramento</Text>
        <Text>Colorado,	Denver</Text>
        <Text>Connecticut,	Hartford</Text>
        <Text>Delaware,	Dover</Text>
        <Text>Florida,	Tallahassee</Text>
        <Text>Georgia,	Atlanta</Text>
        <Text>Hawaii,	Honolulu</Text>
        <Text>Idaho,	Boise	</Text>
        <Text>Illinois,	Springfield	</Text>
        <Text>Indiana,	Indianapolis	</Text>
        <Text>Iowa,	Des Moines	</Text>
        <Text>Kansas,	Topeka</Text>
        <Text>Kentucky,	Frankfort	</Text>
        <Text>Louisiana,	Baton Rouge</Text>
        <Text>Maine,	Augusta</Text>
        <Text>Maryland,	Annapolis</Text>
        <Text>Massachusetts,	Boston</Text>
        <Text>Michigan,	Lansing</Text>
        <Text>Minnesota,	Saint Paul</Text>
        <Text>Mississippi,	Jackson</Text>
        <Text>Missouri,	Jefferson City</Text>
        <Text>Montana,	Helena</Text>
        <Text>Nebraska,	Lincoln</Text>
        <Text>Nevada,	Carson City</Text>
        <Text>New Hampshire,	Concord</Text>
        <Text>New Jersey,	Trenton</Text>
        <Text>New Mexico,	Santa Fe</Text>
        <Text>New York,	Albany</Text>
        <Text>North Carolina,	Raleigh</Text>	
        <Text>North Dakota,	Bismarck</Text>
        <Text>Ohio,	Columbus</Text>
        <Text>Oklahoma,	Oklahoma City</Text>	
        <Text>Oregon,	Salem</Text>
        <Text>Pennsylvania,	Harrisburg</Text>
        <Text>Rhode Island,	Providence</Text>
        <Text>South Carolina,	Columbia</Text>
        <Text>South Dakota,	Pierre</Text>
        <Text>Tennessee,	Nashville</Text>
        <Text>Texas,	Austin</Text>
        <Text>Utah,	Salt Lake City</Text>	
        <Text>Vermont,	Montpelier</Text>
        <Text>Virginia,	Richmond</Text>
        <Text>Washington,	Olympia</Text>
        <Text>West Virginia,	Charleston</Text>
        <Text>Wisconsin,	Madison</Text>
        <Text>Wyoming,	Cheyenne</Text>
      </ScrollView>
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    paddingVertical: 20,
    paddingHorizontal: 30,
  },
  header: {
    color: '#4730EB',
    marginBottom: 8,
    fontWeight: 'bold',
    fontSize: 20,
    textAlign: 'center',
  },
});