Fix fstring

app.py

@@ -230,9 +230,7 @@ with gr.Blocks(title="Automatic Reimbursement Tool Demo") as page:
                 category = gr.Dropdown(
                     value=None,
                     choices=Category.__members__.keys(),
-                    label=f"Recognized category ({
-                        ', '.join(Category.__members__.keys())
-                    })",
+                    label=f"Recognized category ({', '.join(Category.__members__.keys())})",
                     show_label=True,
                     interactive=False,
                 )