fix error message

app.py

@@ -382,7 +382,7 @@ def _user_stats(username: str):
 
 def user_stats(profile: gr.OAuthProfile | None):
     if not profile and not local:
-        return "You must be logged in to remove a dataset"
+        return "You must be logged in to view datasets you are tracking"
     username = profile.preferred_username
     return _user_stats(username)