Updates to get system to build

hosts/apps-desktop.nix

@@ -16,12 +16,13 @@
     protonmail-bridge
 
     # GNOME apps
-    gnome.cheese
-    gnome.nautilus
-    gnome.file-roller
-    gnome.gnome-calculator
-    gnome.gnome-disk-utility
-    gnome.simple-scan
+    cheese
+    nautilus
+    file-roller
+    gnome-calculator
+    gnome-disk-utility
+    simple-scan
+    ghex
 
     # Applications
     anki
@@ -34,7 +35,6 @@
     qbittorrent
     pureref
     libreoffice
-    gnome.ghex
     evince
     pdfsam-basic
     steam