protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
var mainWindow = new MainWindow();
var ctx = new JournalDBEntities();
var journalRepository = new JournalRepository(ctx);
var collectionsRepository = new CollectionsRepository(ctx);
MenuModel menu = MenuModel.Generate(collectionsRepository);
mainWindow.DataContext = new MainWindowModel(journalRepository, collectionsRepository, menu);
mainWindow.Show();
}