Fix cast

demo/src/custom-cards/cast-demo-row.ts

@@ -1,3 +1,4 @@
+/// <reference types="chromecast-caf-sender" />
 import { mdiTelevision } from "@mdi/js";
 import { css, html, LitElement, nothing } from "lit";
 import { customElement, state } from "lit/decorators";

src/cast/cast_manager.ts

@@ -1,4 +1,5 @@
 /* eslint-disable no-console */
+/// <reference types="chromecast-caf-sender" />
 
 import type { Auth } from "home-assistant-js-websocket";
 import { castApiAvailable } from "./cast_framework";