Delay console after network.target

Let's see if we can get rid of the messages after boot.

lagarto-ox.nix

@@ -338,6 +338,7 @@
   # Run getty on /dev/console and restartt until it works
   systemd.services."serial-getty@console" = {
     enable = true;
+    after = [ "network.target" ];
     wantedBy = [ "getty.target" ]; # to start at boot
     serviceConfig.Restart = "always";
   };