providers-in-store (#4)

Reviewed-on: http://catelliub.zapto.org:3000/brontomark/flux/pulls/4
Co-authored-by: mark-cachy <marco@catelli.it>
Co-committed-by: mark-cachy <marco@catelli.it>

lib/main.dart

@@ -105,7 +105,8 @@ class _FluxAppState extends State<FluxApp> {
           create: (_) => ServicesCubit(context.read<SessionBloc>()),
         ),
         BlocProvider<ProvidersCubit>(
-          create: (_) => ProvidersCubit(context.read<SessionBloc>()),
+          create: (_) =>
+              ProvidersCubit(context.read<SessionBloc>())..loadProviders(null),
         ),
       ],
       child: BlocBuilder<ThemeBloc, ThemeState>(