init actions

src/main.cpp

@@ -10,6 +10,20 @@ int main(
         APPLICATION_ID
     );
 
+    // Init actions
+    app->add_action(
+        "quit",
+        sigc::mem_fun(
+            *app,
+            &Gtk::Application::quit
+        )
+    );
+
+    app->set_accel_for_action(
+        "app.quit",
+        "<Primary>q"
+    );
+
     // Launch browser component
     return app->make_window_and_run<app::Browser>(
         argc,