fix typo

app.py

@@ -95,7 +95,7 @@ def embed_youtube(youtube_url):
             if 'v=' in youtube_url:
                 video_id = youtube_url.split("v=")[1]
             elif 'shorts' in youtube_url:
-                video_id = video_id.split("/")[-1]
+                video_id = youtube_url.split("/")[-1]
             else:
                 raise Exception("Unsupported URL format")
             print(video_id)