nixos/home-assistant: do not set server_host by default (#469704)

            http = {

              # https://www.home-assistant.io/integrations/http/

              server_host = mkOption {

                type = types.either types.str (types.listOf types.str);

                default = [

                  "0.0.0.0"

                  "::"

                type = types.nullOr (types.either types.str (types.listOf types.str));

                default = null;

                example = [

                  "::1"

                  "127.0.0.1"

                ];

                example = "::1";

                description = ''

                  Only listen to incoming requests on specific IP/host. The default listed assumes support for IPv4 and IPv6.

                  Only listen to incoming requests on specific IP/host.

                  The option is unset by default, meaning that Home Assistant listens on all available addresses.

                '';

              };