Add 'fr'

frontend/app_flowy/lib/startup/tasks/application_widget.dart

@@ -32,6 +32,7 @@ class AppWidgetTask extends LaunchTask {
               // In alphabetical order
               Locale('en'),
               Locale('es', 'VE'),
+              Locale('fr'),
               Locale('fr', 'CA'),
               Locale('it', 'IT'),
               Locale('ru', 'RU'),