get and set config via mqtt messages

src/main.cpp

@@ -69,7 +69,7 @@ void loop()
     if (commands::commandMap.contains(cmd))
     { // call command from command map in this same thread (the MQTT thread)
       LOG_INFO("Executing command", cmd.c_str());
-      auto answer = std::move(commands::commandMap.at(cmd)(devices, params));
+      auto answer = std::move(commands::commandMap.at(cmd)(devices, params)); // here the magic happens
       if (answer.isNull())
         return;
       mqtt.publish(conf.m_mqttPublish["answers"], answer);