pullFeatures method
Implementation
@override
Future<Iterable<FeatureAbstract>> pullFeatures() async {
await _remoteConfig.fetchAndActivate();
final features = _remoteConfig.getAll().entries.map((e) {
final raw = FeatureFirebase(
key: e.key,
value: e.value.asString(),
);
return raw;
}).toList();
return features;
}