debian buster modifications

tasks/xfce.yaml

@@ -14,12 +14,11 @@
       - gnome-dust-icon-theme
       - gnome-human-icon-theme
       - gnome-icon-theme
-      - gnome-icon-theme-extras
       - gnome-icon-theme-gartoon
       - gnome-icon-theme-nuovo
       - gnome-icon-theme-suede
-      - gnome-icon-theme-symbolic
       - gnome-icon-theme-yasis
+      - gnome-extra-icons
       - gnome-illustrious-icon-theme
       - gnome-noble-icon-theme
       - gnome-wine-icon-theme