nixos/pantheon: disable nm-applet indicator

nixos/modules/services/x11/desktop-managers/pantheon.nix

@@ -240,6 +240,8 @@ in
       # Otherwise you can't store NetworkManager Secrets with
       # "Store the password only for this user"
       programs.nm-applet.enable = true;
+      # Pantheon has its own network indicator
+      programs.nm-applet.indicator = false;
 
       # Shell integration for VTE terminals
       programs.bash.vteIntegration = mkDefault true;