Labels Form Config_flow not showing

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1

Hi! I’m developing a new integration, I already wrote the code for the config flow. But the UI doesn’t show any labels?

I have already added a strings.json and two language files (it.json / en.json)

config.flow.py

import logging
from typing import Any

import voluptuous as vol
import homeassistant.helpers.config_validation as cv

from homeassistant.exceptions import HomeAssistantError
from homeassistant.config_entries import (
    ConfigEntry,
    ConfigFlow,
    OptionsFlow,
    FlowResult,
)
from homeassistant.core import callback, HomeAssistant
from homeassistant import config_entries
from .const import DOMAIN

_LOGGER = logging.getLogger(__name__)


class SimpleAlarmConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):

    async def async_step_user(self, user_input=None):
        """Handle the initial step."""
        errors = {}
        if user_input is not None:
            try:   
                _LOGGER.debug("User input: %s", user_input)
                return self.async_create_entry(title="Simple Alarm", data=user_input)
            except Exception as e:
                _LOGGER.error(
                    "Errore durante la gestione del form: %s", str(e))
                errors["base"] = "unknown_error"

        data_schema = vol.Schema({
            vol.Required("code"): str,
            vol.Required("ip"): str,
            vol.Required("port"): str,
            vol.Required("macAddr"): str,
            vol.Required("pinSuper"): str,
        })
        return self.async_show_form(
            step_id="user",
            data_schema=data_schema,
            errors=errors,

        )

it.json

{
    "config": {
    
        "step": {
            "user": {
                "title": "Configure Your Device",
                "data": {
                    "code": "Access Code",
                    "ip": "Device IP Address",
                    "port": "Port Number",
                    "macAddr": "MAC Address",
                    "pinSuper": "Super User PIN"
                }
            }
        }
    }

}```