fix for new MQTT client library changes

Author: coding-lemur

src/server.ts

@@ -1,4 +1,4 @@
-import mqtt, { IClientOptions } from 'mqtt';
+import mqtt, { IClientOptions, MqttClient } from 'mqtt';
 
 import { ControllerInfo } from './models';
 import { SmartDisplayController } from './smart-display-controller';
@@ -12,7 +12,7 @@ import { CityWeatherOwmApp as CityWeatherOwmApp } from './apps/city-weather-owm'
 import { CityWeatherHaApp as CityWeatherHaApp } from './apps/city-weather-ha';
 
 export class Server {
-    private readonly _client: mqtt.Client;
+    private readonly _client: MqttClient;
     private readonly _apps: App[] = [];
     private readonly _controller: SmartDisplayController;
     private readonly _appIterations = parseInt(

src/smart-display-controller.ts

@@ -1,4 +1,4 @@
-import mqtt from 'mqtt';
+import { MqttClient } from 'mqtt';
 import Color from 'color';
 import dayjs from 'dayjs';
 
@@ -36,7 +36,7 @@ export class SmartDisplayController {
         return diffSeconds > 300; // more than 5 minutes old
     }
 
-    constructor(private _client: mqtt.Client) {
+    constructor(private _client: MqttClient) {
         _client
             .subscribe('smartDisplay/client/out/#')
             .on('message', (topic, message) => {