[gnome-shell] quickSettings: Fix slider accessibility

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

commit b7d738dfffab07f84649b647ea9ce639f37079a4
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Aug 18 10:28:23 2022 +0200

    quickSettings: Fix slider accessibility
    
    Since we put the actual slider into a bin to get a proper focus
    indication, the slider isn't focused anymore and its accessible object
    is therefore invisible to the screen reader.
    
    Fix this by passing the slider's accessible object to the actor
    that takes the focus.
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2431>

 js/ui/quickSettings.js | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/js/ui/quickSettings.js b/js/ui/quickSettings.js
index 50dbf6f351..faa87601fc 100644
--- a/js/ui/quickSettings.js
+++ b/js/ui/quickSettings.js
@@ -195,6 +195,7 @@ var QuickSlider = GObject.registerClass({
         });
         box.add_child(sliderBin);
 
+        sliderBin.set_accessible(this.slider.get_accessible());
         sliderBin.connect('event', (bin, event) => this.slider.event(event, false));
 
         this._menuButton = new St.Button({