add localization for no_country text

lib/country_localizations.dart

@@ -21,7 +21,6 @@ class CountryLocalizations {
   late Map<String, String> _localizedStrings;
 
   Future<bool> load() async {
-    print('locale.languageCode: ${locale.languageCode}');
     String jsonString = await rootBundle.loadString(
         'packages/country_code_picker/i18n/${locale.languageCode}.json');
     Map<String, dynamic> jsonMap = json.decode(jsonString);

lib/i18n/en.json

@@ -264,5 +264,6 @@
     "RS": "Serbia",
     "SX": "Sint Maarten (Dutch part)",
     "SS": "South Sudan",
-    "XK": "Kosovo"
+    "XK": "Kosovo",
+    "no_country": "No country found"
 }

lib/i18n/it.json

@@ -248,5 +248,6 @@
     "ZA": "Sudafrica",
     "ZM": "Zambia",
     "ZW": "Zimbabwe",
-    "XK": "Kosovo"
+    "XK": "Kosovo",
+    "no_country": "Nessun paese trovato"
 }

lib/selection_dialog.dart

@@ -1,4 +1,5 @@
 import 'package:country_code_picker/country_code.dart';
+import 'package:country_code_picker/country_localizations.dart';
 import 'package:flutter/material.dart';
 
 /// selection dialog used for selection of the country code
@@ -176,7 +177,8 @@ class _SelectionDialogState extends State<SelectionDialog> {
     }
 
     return Center(
-      child: Text('No country found'),
+      child: Text(CountryLocalizations.of(context)?.translate('no_country') ??
+          'No country found'),
     );
   }