create tab page submenu

src/app/browser.cpp

@@ -42,7 +42,7 @@ Browser::Browser(
     );
 
     add_action(
-        "main_tab_update",
+        "main_tab_page_update",
         [this]
         {
             browserMain->tab_update();

src/app/browser/header/menu.cpp

@@ -17,9 +17,17 @@ Menu::Menu()
             "win.main_tab_append"
         );
 
-        tab->append(
-            _("Update"),
-            "win.main_tab_update"
+        // Build tab page submenu model
+        tab_page = Gio::Menu::create();
+
+            tab_page->append(
+                _("Update"),
+                "win.main_tab_page_update"
+            );
+
+        tab->append_submenu(
+            _("Page"),
+            tab_page
         );
 
         // Build tab close submenu model

src/app/browser/header/menu.hpp

@@ -10,6 +10,7 @@ namespace app::browser::header
     class Menu : public Gtk::MenuButton
     {
         Glib::RefPtr<Gio::Menu> tab,
+                                tab_page,
                                 tab_close,
                                 tool,
                                 main;

src/main.cpp

@@ -33,7 +33,7 @@ int main(
     );
 
     app->set_accel_for_action(
-        "win.main_tab_update",
+        "win.main_tab_page_update",
         "<Primary>r"
     );