feat(networking): add enable option

modules/networking/default.nix

@@ -1,6 +1,9 @@
-{ config, ... }:
+{ lib, config, ... }:
 
 {
+  options.networking.enable = lib.mkEnableOption "network configuration";
+
+  config = lib.mkIf config.networking.enable {
     networking = {
       hostName = config.host.name;
       wireless.iwd.enable = true;
@@ -8,4 +11,5 @@
       nftables.enable = true;
       firewall.enable = true;
     };
+  };
 }