title: how can i add icons to drawer navigator items that have stack navigation in react native
body: <p>i want to add icons to drawer items which have separate stack navigation screens. When i try to add drawer Icons to navigation options inside of the main screen, nothing show. Here's a snippet of my code</p>
  
  <pre><code>const HomeScreenNav = createStackNavigator({
    main: {screen: Main },
    providers: { screen: Providers},
    providerProfile: { screen: ProviderProfile},
  }, {
    initialRouteName: 'main',
  })
  </code></pre>
  
  <p>Then my drawer navigation</p>
  
  <pre><code>const AppDrawerNavigation = createDrawerNavigator({
     home: { screen: HomeScreenNav },
     appointments: {screen: Appointments}
  }, {
     initialRouteName: 'home',
     drawerBackgroundColor: '#fff7fc',
     contentComponent: drawerComponent,
  })
  </code></pre>