Moved app menu to the menu bar to ensure consistent appearance across desktops.

src/juci.cpp

@@ -121,15 +121,8 @@ void Application::on_startup() {
   Gtk::Application::on_startup();
 
   Menu::get().build();
-
-  if(!Menu::get().juci_menu || !Menu::get().window_menu) {
-    std::cerr << "Menu not found." << std::endl;
-  }
-  else {
-    set_app_menu(Menu::get().juci_menu);
   set_menubar(Menu::get().window_menu);
 }
-}
 
 Application::Application() : Gtk::Application("no.sout.juci", Gio::APPLICATION_NON_UNIQUE | Gio::APPLICATION_HANDLES_COMMAND_LINE) {
   Glib::set_application_name("juCi++");

src/menu.cpp

@@ -87,7 +87,10 @@ const Glib::ustring menu_xml = R"RAW(<interface>
       </item>
     </section>
   </menu>
-  <menu id='juci-menu'>
+
+  <menu id='window-menu'>
+    <submenu id='juci-menu'>
+      <attribute name='label' translatable='yes'>_juci++</attribute>
       <section>
         <item>
           <attribute name='label' translatable='yes'>_About</attribute>
@@ -116,9 +119,7 @@ const Glib::ustring menu_xml = R"RAW(<interface>
           <attribute name='action'>app.quit</attribute>
         </item>
       </section>
-  </menu>
+    </submenu>
-
-  <menu id='window-menu'>
     <submenu>
       <attribute name='label' translatable='yes'>_File</attribute>
       <section>