Fix when no reviews exist raises error

src/routes/reviews.py

@@ -13,7 +13,7 @@ async def list_reviews():
     with get_connection() as conn:
         reviews = conn.execute("SELECT * FROM Review").fetchdf()
     if reviews.empty:
-        raise HTTPException(status_code=404, detail="Reviews not found")
+        return []
     return reviews.to_dict(orient="records")
 
 
@@ -25,7 +25,7 @@ async def get_review(song_id: int, user_id: int):
             (song_id, user_id),
         ).fetchdf()
     if review.empty:
-        raise HTTPException(status_code=404, detail="Review not found")
+        return []
     return review.to_dict(orient="records")[0]