Function subscriber

app/src/API/Handlers/MqttHandler.cpp:447–450

* @brief Returns a pointer to the UI MQTT driver, or nullptr if unavailable. */

 * @brief Returns a pointer to the UI MQTT driver, or nullptr if unavailable.
 */
[[nodiscard]] static IO::Drivers::MQTT* subscriber()
{
  return IO::ConnectionManager::instance().mqtt();
}

/**
 * @brief Returns the subscriber driver configuration; password is never included.