Update app.py

app.py

@@ -179,9 +179,9 @@ with gr.Blocks() as demo:
 
     # Buttons for filtering categories
     with gr.Row():
-        btn_all = gr.Button("ALL")
-        btn_vegan = gr.Button("VEGAN")
-        btn_halal = gr.Button("HALAL")
+        btn_all = gr.Radio("ALL")
+        btn_vegan = gr.Radio("VEGAN")
+        btn_halal = gr.Radio("HALAL")
 
     # Dish display
     dish_display = gr.HTML(value=display_dishes("ALL"))