fix youtube video links missing params in dev branch

Author: nushea

src/app/components/url-preview/ClientPreview.tsx

@@ -166,7 +166,7 @@ function parseYoutubeLink(url: string): YoutubeLink | null {
   if (url.includes('youtu.be')) {
     const split = path.split('?');
     [videoId] = split;
-    params = split[1].split('&');
+    params = split[1]?.split('&') ?? undefined;
   } else {
     params = path.split('?')[1].split('&');
     videoId = params.find((s) => s.startsWith('v='), params)?.split('v=')[1];
@@ -175,8 +175,10 @@ function parseYoutubeLink(url: string): YoutubeLink | null {
   if (!videoId) return null;
 
   // playlist is not used for the embed, it can be appended as is
-  const playlist = params.find((s) => s.startsWith('list='), params);
-  const timestamp = params.find((s) => s.startsWith('t='), params)?.split('t=')[1];
+  const playlist = params ? params.find((s) => s.startsWith('list='), params) : undefined;
+  const timestamp = params
+    ? params.find((s) => s.startsWith('t='), params)?.split('t=')[1]
+    : undefined;
 
   return {
     videoId,