creacion de setting y limpiar city

packages/city_repository/lib/src/repositories/firebase_city_repository.dart

@@ -4,8 +4,7 @@ import 'package:city_repository/city_repository.dart';
 import 'package:cloud_firestore/cloud_firestore.dart';
 
 class FirebaseCityRepository implements CityRepository {
-  final citiesCollection =
-      FirebaseFirestore.instance.collection('countries v2');
+  final citiesCollection = FirebaseFirestore.instance.collection('countries v2');
 
   List<CityUi>? _cities;
 
@@ -27,10 +26,11 @@ class FirebaseCityRepository implements CityRepository {
       for (var region in country.regions) {
         for (var city in region.cities) {
           cities.add(CityUi(
-              cityName: city.name,
-              coordsOfCity: city.coords,
-              stateOfCity: region.name,
-              countryOfCity: country.name));
+            cityName: city.name,
+            coordsOfCity: city.coords,
+            stateOfCity: region.name,
+            countryOfCity: country.name,
+          ));
         }
       }
     } catch (e) {