Initial PTT designs

src/room/PTTFeed.jsx

@@ -0,0 +1,10 @@
+import React from "react";
+import { useCallFeed } from "../video-grid/useCallFeed";
+import { useMediaStream } from "../video-grid/useMediaStream";
+import styles from "./PTTFeed.module.css";
+
+export function PTTFeed({ callFeed, audioOutputDevice }) {
+  const { isLocal, stream } = useCallFeed(callFeed);
+  const mediaRef = useMediaStream(stream, audioOutputDevice, isLocal);
+  return <audio ref={mediaRef} className={styles.audioFeed} playsInline />;
+}