Fixed a bug in generate data where it didn't reference the json folder in the new file sructure

src/data_synthesis/generate_data.py

@@ -173,7 +173,7 @@ def add_products(category: str, product_json: str, k: int) -> None:
 
 
 def get_categories_and_features() -> Dict[str, List[str]]:
-    product_features_file = os.path.join(data_dir, 'product_features.json')
+    product_features_file = os.path.join(data_dir, 'json', 'product_features.json')
     cats_and_feats = {}
     with open(product_features_file, 'r') as f:
         feature_json = json.load(f)