nginx: Don't override extra options in the host helper

configuration/default.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 
 {
   imports = [
@@ -58,11 +58,11 @@
 
     virtualHosts = let
       host = port: extra:
-        {
+        lib.recursiveUpdate {
           forceSSL = true;
           enableACME = true;
           locations."/" = { proxyPass = "http://127.0.0.1:${toString port}"; };
-        } // extra;
+        } extra;
       domain = config.services.nginx.domain;
     in {
       "${domain}" = host 3002 { serverAliases = [ "www.${domain}" ]; };