[gnome-builder] ide-gui: Add back Quit application shortcut (Ctrl+Q)

[Christian Hergert <chergert src gnome org>]

commit 13a8da8598aff397f6f3a00e5e9260b9769848b5
Author: vanadiae <vanadiae35 gmail com>
Date:   Tue Aug 9 22:53:20 2022 +0200

    ide-gui: Add back Quit application shortcut (Ctrl+Q)
    
    It was dropped along the rest that went away during the GTK 4 port

 src/libide/gui/gtk/keybindings.json | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/libide/gui/gtk/keybindings.json b/src/libide/gui/gtk/keybindings.json
index b46206847..f3258d6e5 100644
--- a/src/libide/gui/gtk/keybindings.json
+++ b/src/libide/gui/gtk/keybindings.json
@@ -23,6 +23,7 @@
 /* Workspace Actions */
 { "trigger" : "<Control>comma", "action" : "app.preferences", "phase" : "capture" },
 { "trigger" : "<Alt>comma", "action" : "context.workbench.configure", "phase" : "capture" },
+{ "trigger" : "<Control>q", "action" : "app.quit", "phase" : "capture" },
 { "trigger" : "<Control>w", "action" : "frame.close-page-or-frame", "when" : "inPage()", "phase" : "bubble" 
},
 
 /* Toggle Panels */