Added video calling

src/components/PartyVideo.js

@@ -0,0 +1,15 @@
+import React, { useRef, useEffect } from "react";
+
+function PartyVideo({ stream }) {
+  const videoRef = useRef();
+
+  useEffect(() => {
+    if (videoRef.current) {
+      videoRef.current.srcObject = stream;
+    }
+  }, [stream]);
+
+  return <video ref={videoRef} autoPlay muted />;
+}
+
+export default PartyVideo;