reintroducing auth token as secret

app.py

@@ -94,7 +94,7 @@ def check_input_token_length(message: str, chat_history: list[tuple[str, str]],
 
 def getTokLen(self) -> str:
     global tokLen
-    return f"tokens used = {tokLen}"
+    return f"tokens used so far: {tokLen}/{MAX_INPUT_TOKEN_LENGTH}"
 
 with gr.Blocks(css='style.css') as demo:
     gr.Markdown(DESCRIPTION)