message: Changed badge to a string
  Latest react native is fussier
diff: @@ -45,7 +45,7 @@ const App = () => {
  <TabBarItem
  title="Notifications"
  image={require('./notifications.png')}
  - badge={!notified ? getFollows().length : null}
  + badge={!notified ? '' + getFollows().length : null}
  onPress={() => {setNotified(true)}}>
  <Stack navigator={notificationsNavigator} />
  </TabBarItem>
  