app: remove quit mentu entry

The quit menu entry is dispensable as
the application can be quit with cross

TODO.md

@@ -96,6 +96,7 @@
 - [ ] Implement zoom on the view (https://gitlab.gnome.org/World/obfuscate/-/blob/master/src/widgets/drawing_area.rs)
 - [ ] Settings: add a log level selection
 - [ ] reopen the last log on prematured exit (crash)
+- [x] Remove quit as it's unnecessary with close cross
 
 ### CI/Infra
 

src/app.rs

@@ -263,6 +263,9 @@ impl GPSApp {
     }
 
     fn setup_app_actions(&self, application: &gtk::Application) {
+        application.add_action(&gio::SimpleAction::new("new-window", None));
+        application.set_accels_for_action("app.new-window", &["<primary>n"]);
+
         application.add_action(&gio::SimpleAction::new("open", None));
         application.set_accels_for_action("app.open", &["<primary>o"]);
 
@@ -271,15 +274,10 @@ impl GPSApp {
 
         application.add_action(&gio::SimpleAction::new("delete", None));
         application.set_accels_for_action("app.delete", &["<primary>d", "Delete"]);
+
         application.add_action(&gio::SimpleAction::new("preferences", None));
         application.set_accels_for_action("app.preferences", &["<primary>p"]);
 
-        application.add_action(&gio::SimpleAction::new("quit", None));
-        application.set_accels_for_action("app.quit", &["<primary>q"]);
-
-        application.add_action(&gio::SimpleAction::new("new-window", None));
-        application.set_accels_for_action("app.new-window", &["<primary>n"]);
-
         application.add_action(&gio::SimpleAction::new("about", None));
         application.set_accels_for_action("app.about", &["<primary>a"]);
 
@@ -522,12 +520,6 @@ impl GPSApp {
             graph_view.delete_selected();
         });
 
-        let app = application.downgrade();
-        self.connect_app_menu_action("quit", move |_, _| {
-            let app = app.upgrade().unwrap();
-            app.quit();
-        });
-
         let app_weak = self.downgrade();
         self.connect_app_menu_action("about", move |_, _| {
             let app = upgrade_weak!(app_weak);

src/ui/gps.ui

@@ -27,10 +27,6 @@
         <attribute name="label" translatable="yes" comments="Primary menu entry that opens the About dialog.">_About GstPipelineStudio</attribute>
         <attribute name="action">app.about</attribute>
       </item>
-      <item>
-        <attribute name="label" translatable="yes" comments="Primary menu entry that quit app">_Quit GstPipelineStudio</attribute>
-        <attribute name="action">app.quit</attribute>
-      </item>
     </section>
   </menu>
   <menu id="port_menu">