multi-user fix

app.py

@@ -56,7 +56,9 @@ def pdf_to_text(file_obj, progress=gr.Progress()):
         f.close()
     progress(0.9, desc="Azure OpenAI Magic...")
     #save the result.content in a text file
-    with open("data/text.txt", "w") as f:
+    # generate random string 
+    import random
+    with open("data/" + ''.join(random.choices(string.ascii_uppercase + string.digits, k = 10)) + ".txt", "w") as f:
         f.write(str(result.content))
         f.close()
     # create_index()
@@ -66,7 +68,7 @@ def pdf_to_text(file_obj, progress=gr.Progress()):
 
 chat = ChatWrapper()
 
-with gr.Blocks(css="footer {visibility: hidden;}") as demo:
+with gr.Blocks(css="footer {visibility: hidden;}", theme="grass") as demo:
     chat_history_state = gr.State()
     pdf_content = gr.State()