fix Bug #7910

lib/data/api/rest_client.dart

   @GET("/api/tb-countries?page={page}&size={size}&&sort=name,ASC")
   Future<List<LocationUnit>> getCountries(
       {@Path() int page = 0,
-      @Path() int size = 20,
+      @Path() int size = 400,
       @DioOptions() Options options});
 
   @GET(

lib/data/api/rest_client.g.dart

   }
 
   @override
-  getCountries({page = 0, size = 20, options}) async {
+  getCountries({page = 0, size = 400, options}) async {
     const _extra = <String, dynamic>{};
     final queryParameters = <String, dynamic>{};
     queryParameters.removeWhere((k, v) => v == null);

lib/data/repository/repository.dart

       {@required LocationType locationType,
       int filterId,
       int page = 0,
-      int size = 100}) {
+      int size = 500}) {
     final client = RestClient(dio);
     var op = buildConfigurableCacheOptions(
         forceRefresh: true, maxAge: Duration(days: ConstCommon.kMaxAgeCache));
     var response;
     switch (locationType) {
       case LocationType.province:
-        response = client.getProvinces(filterId, options: op);
+        response =
+            client.getProvinces(filterId, options: op, page: page, size: size);
         break;
       case LocationType.district:
-        response = client.getDistricts(filterId, options: op);
+        response =
+            client.getDistricts(filterId, options: op, page: page, size: size);
         break;
       case LocationType.ward:
-        response = client.getWards(filterId, options: op);
+        response =
+            client.getWards(filterId, options: op, page: page, size: size);
         break;
       default:
         response = client.getCountries();