nix: rename host pluto to twinkpad

hosts/twinkpad/conf.nix

@@ -1,7 +1,8 @@
 { config, lib, pkgs, ... }:
 
 {
-  networking.hostName = "pluto";
+  imports = [ ./hardware-configuration.nix ];
+  networking.hostName = "twinkpad";
 
   hardware.graphics.enable = true;
   hardware.graphics.extraPackages = with pkgs; [ intel-media-driver ];