fix type issues

Author: MarconLP

src/components/Recorder.tsx

@@ -110,7 +110,7 @@ export default function Recorder({ closeModal, step, setStep }: Props) {
     const tools = EBML.tools;
 
     const fileReader = new FileReader();
-    fileReader.onload = function (e) {
+    fileReader.onload = function () {
       if (!this.result || typeof this.result === "string") return;
       const ebmlElms = decoder.decode(this.result);
       ebmlElms.forEach(function (element) {

src/components/VideoPlayer.tsx

@@ -22,7 +22,7 @@ interface Props {
 }
 
 export default function VideoPlayer({ video_url, thumbnailUrl }: Props) {
-  let player = useRef<MediaPlayerInstance>(null);
+  const player = useRef<MediaPlayerInstance>(null);
 
   useEffect(() => {
     // Subscribe to state updates.