fix: telegraf topics, mqtt brokers, docker-compose fixes

- Fix MOSQUITTO_HOST (wrong container name)
- Fix EMQX_PORT (1885 external -> 1883 internal)
- Fix telegraf MQTT topics (city/sensors/#)
- Fix BunkerM dynsec JSON
- Add kepler.yml Traefik config
- Update monitoring script

docker-compose.orion-ld.yml

@@ -13,7 +13,7 @@ services:
           - orion-ld
           - smart-city-orion-ld
       traefik-public:
-    command: -dbhost smart-city-mongodb -db orion
+    command: -dbhost smart-city-iot-mongodb -db orion
     healthcheck:
       test: ["CMD-SHELL", "curl -f http://localhost:1026/version || exit 1"]
       interval: 30s