[gnome-shell/wip/jtojnar/ext-clipboard] extensionsService: Fix copying technical details when extension crashes

[Jan Tojnar <jtojnar src gnome org>]

commit c15e2410028b1b5677d88142af9be6e1f5b62993
Author: Jan Tojnar <jtojnar gmail com>
Date:   Thu Apr 8 06:25:28 2021 +0200

    extensionsService: Fix copying technical details when extension crashes
    
    This was forgotten when porting to GTK 4, leading to the following error
    when user tries to copy the error message produced by an extension:
    
            JS ERROR: TypeError: Gtk.Clipboard is undefined
            _initActions/<@resource:///org/gnome/Shell/Extensions/js/extensionsService.js:255:31
            run@resource:///org/gnome/Shell/Extensions/js/dbusService.js:177:20
            main@resource:///org/gnome/Shell/Extensions/js/main.js:19:13
            run@resource:///org/gnome/gjs/modules/script/package.js:206:19
            start@resource:///org/gnome/gjs/modules/script/package.js:190:8
            
@/nix/store/fwnkwvhwm3kqck4fhkc5y5z853radggg-gnome-shell-40.0/share/gnome-shell/.org.gnome.Shell.Extensions-wrapped:7:17

 js/dbusServices/extensions/extensionsService.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/js/dbusServices/extensions/extensionsService.js b/js/dbusServices/extensions/extensionsService.js
index 35e7805785..9ea8d82183 100644
--- a/js/dbusServices/extensions/extensionsService.js
+++ b/js/dbusServices/extensions/extensionsService.js
@@ -252,8 +252,8 @@ var ExtensionPrefsDialog = GObject.registerClass({
             enabled: false,
         });
         action.connect('activate', () => {
-            const clipboard = Gtk.Clipboard.get_default(this.get_display());
-            clipboard.set_text(this._errorMarkdown, -1);
+            const clipboard = Gdk.Display.get_clipboard(this.get_display());
+            clipboard.set_text(this._errorMarkdown);
         });
         this._actionGroup.add_action(action);