Minor changes to function outputs. Attempted Python downgrade to 3.10 to address xlsx output issues

Dockerfile

@@ -1,5 +1,8 @@
 # First stage: build dependencies
-FROM public.ecr.aws/docker/library/python:3.11.9-slim-bookworm
+#FROM public.ecr.aws/docker/library/python:3.11.9-slim-bookworm
+
+# Trying Python 10 as I saw somewhere that Python 11 may result in corrupted openpyxl xlsx outputs
+FROM public.ecr.aws/docker/library/python:3.10.14-slim-bookworm
 
 # Install Lambda web adapter in case you want to run with with an AWS Lamba function URL
 COPY --from=public.ecr.aws/awsguru/aws-lambda-adapter:0.8.3 /lambda-adapter /opt/extensions/lambda-adapter

search_funcs/bm25_functions.py

@@ -456,7 +456,7 @@ def prepare_bm25(
 	if not in_file:
 		out_message ="No input file found. Please load in at least one file."
 		print(out_message)
-		return out_message, None, None
+		return out_message, None, None, None
 
 	if not prepared_search_text_list:
 		out_message = "No data file found. Please load in at least one csv/Excel/Parquet file."
@@ -511,7 +511,7 @@ def prepare_bm25(
 
 		message = "Search parameters loaded."
 
-		return message, bm25_search_file_name, bm25
+		return message, bm25_search_file_name, bm25, prepared_search_text_list 
 
 	message = "Search parameters loaded."