Fixed bug not rendering mini-media-player

Author: marcokreeft87

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "room-card",
-  "version": "1.08.00",
+  "version": "1.08.01",
   "description": "Show entities in Home Assistant's Lovelace UI",
   "keywords": [
     "home-assistant",

package.json

@@ -29,7 +29,7 @@ console.info(
 @customElement('room-card')
 export default class RoomCard extends LitElement {
     private _hass?: HomeAssistant;
-    @property() monitoredStates?: HassEntities;
+    @property() monitoredStates?: HassEntities = {};
     @property() config?: RoomCardConfig;
     @property() _helpers: { createCardElement(config: LovelaceCardConfig): LovelaceCard }