add cyberchef and correct things in nixos containers

modules/nix/containers/nixos/unbound.nix

@@ -2,6 +2,7 @@
 let
   inherit (lib) mkIf mkOption types;
   cfg = config.smayzy.containers.nixos.unbound;
+  net = config.smayzy.containers.networking;
 in
 {
   options.smayzy.containers.nixos.unbound = {
@@ -61,6 +62,8 @@ in
             };
           };
         };
+        networking.defaultGateway = net.gateway;
+        networking.nameservers = net.dns;
         networking.firewall.allowedTCPPorts = [ 53 ];
         networking.firewall.allowedUDPPorts = [ 53 ];
       };