containers: make all variables explicit

Instead of merging the argument set just make all arguments explicit.

nix/os/containers/webserver.nix

@@ -1,10 +1,7 @@
-{ ... } @ args:
-
-let
-
-in
-{ httpsPort ? 443
-}: args // {
+{ hostAddress
+, localAddress
+, httpsPort ? 443
+}: {
   config = { config, pkgs, ... }: {
     imports = [
       ../profiles/containers/configuration.nix
@@ -95,4 +92,6 @@ in
       protocol = "tcp";
     }
   ];
+
+  inherit hostAddress localAddress;
 }