move all mqtt from statusservice to mqtt.start()

src/mqtt.cpp

@@ -255,9 +255,11 @@ void Mqtt::start(AsyncMqttClient * mqttClient) {
     });
 
 #ifndef EMSESP_STANDALONE
+    mqttClient_->onConnect([this](bool sessionPresent) { on_connect(); });
     mqttClient_->setWill(make_topic(will_topic_, "status"), 1, true, "offline"); // with qos 1, retain true
     mqttClient_->onMessage([this](char * topic, char * payload, AsyncMqttClientMessageProperties properties, size_t len, size_t index, size_t total) {
         on_message(topic, payload, len);
+        mqttClient_->onPublish([this](uint16_t packetId) { on_publish(packetId); });
     });
 #endif
 }