RN-LFVL-3 - Replacing dataSource with data

RN-LFVL-3-ReplaceDataSource.js

export default class Application extends Component {
  ...
  render() {
    if (this.state.isLoading) {
      ...
    } else {
      return (
        <FlatList
          data={this.state._data} //Replacing "dataSource={this.state.dataSource}"
          ...
        />
      );
    }
  }
}