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

[Marge Bot <marge-bot src gnome org>]

commit 1b5d71130e3a48d8f636542f979346add7829544
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
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1795>

 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..2a5cceaef2 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 = this.get_display().get_clipboard();
+            clipboard.set_text(this._errorMarkdown);
         });
         this._actionGroup.add_action(action);