get notifications from dbus

include/app.hpp

@@ -6,6 +6,7 @@
 #include "glibmm/refptr.h"
 #include "gtkmm/application.h"
 #include "services/hyprland.hpp"
+#include "services/notifications.hpp"
 #include "services/tray.hpp"
 
 class App {
@@ -18,6 +19,7 @@ class App {
     Glib::RefPtr<Gtk::Application> app;
     std::vector<Bar *> bars;
     HyprlandService hyprlandService;
+    NotificationService notificationService;
     TrayService trayService;
 
     void setupServices();