[devdocsgjs/fix-icon] Add missing icon to CSS

[Philip Chimento <pchimento src gnome org>]

commit 1c22b6a148ed8018d51e39a390df56119d8b6caa
Author: Philip Chimento <philip chimento gmail com>
Date:   Fri May 1 13:48:51 2020 -0700

    Add missing icon to CSS

 assets/stylesheets/global/_icons.scss | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/assets/stylesheets/global/_icons.scss b/assets/stylesheets/global/_icons.scss
index 24493562..e5720570 100644
--- a/assets/stylesheets/global/_icons.scss
+++ b/assets/stylesheets/global/_icons.scss
@@ -350,6 +350,7 @@ convert public/icons/docs/{appstream,cairo,champlain,cheese,clutter,evince,evolu
 ._icon-gstvideo10:before   { @extend %gnome-icons; background-position: -10rem 0; }
 ._icon-gdk20:before,
 ._icon-gdk30:before,
+._icon-gdkx1120:before,
 ._icon-gdkx1130:before,
 ._icon-gtk20:before,
 ._icon-gtk30:before        { @extend %gnome-icons; background-position: -11rem 0; }