[gnome-system-monitor/wip/davidk/help-overlay-shortcut] application: Fix help overlay shortcut

[David King <davidk src gnome org>]

commit 4576e668aba03946a766a94894b38c586d21dee8
Author: David King <amigadave amigadave com>
Date:   Mon Apr 25 14:17:43 2022 +0100

    application: Fix help overlay shortcut
    
    https://gitlab.gnome.org/GNOME/gnome-system-monitor/-/issues/202
    https://bugzilla.redhat.com/show_bug.cgi?id=2073741

 src/application.cpp | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/application.cpp b/src/application.cpp
index f23d29a9..17c21b14 100644
--- a/src/application.cpp
+++ b/src/application.cpp
@@ -516,6 +516,7 @@ void GsmApplication::on_startup()
     add_accelerator("<Alt>Return", "win.process-properties", NULL);
     add_accelerator("<Primary>f", "win.search", g_variant_new_boolean (TRUE));
     add_accelerator("F1", "app.help", NULL);
+    add_accelerator("<Primary>question", "win.show-help-overlay", NULL);
 
     Gtk::Window::set_default_icon_name ("org.gnome.SystemMonitor");