Update app.py

app.py

@@ -226,7 +226,7 @@ def export_chat(history):
 def import_chat(file):
     """Import chat history from a JSONL file."""
     try:
-        content = file.read()  # Read the file directly as a string
+        content = file  # Read the file directly as a string
         lines = [line.strip() for line in content.split("\n") if line.strip()]
         
         messages = [json.loads(line) for line in lines]