Fix flickering video element

src/js/media.tsx

@@ -117,6 +117,9 @@ export function VideoPlayer({ ms }: VideoPlayerProps) {
     const videoRef = useRef<HTMLVideoElement>(null)
 
     useEffect(() => {
+        if (ready) {
+            return
+        }
         if (videoRef.current) {
             if (videoRef.current) {
                 const ref = videoRef.current