Move fragments and mission-center to user

modules/desktop/gnome.nix

@@ -153,6 +153,8 @@ in {
 
     user.packages = with pkgs; [
       celluloid
+      fragments
+      mission-center
     ];
 
     environment.systemPackages = with pkgs; [
@@ -160,7 +162,6 @@ in {
       bmon
       fd
       ffmpeg
-      fragments
       gnome.gnome-boxes
       gnomeExtensions.another-window-session-manager
       # gnomeExtensions.bifocals
@@ -191,7 +192,6 @@ in {
       # gnomeExtensions.worksets
       # gnomeExtensions.workspace-matrix
       iotop
-      mission-center
       ripgrep
       rsync
       tcpdump