refactor: remove un-used png files

app.py

@@ -92,7 +92,7 @@ with gr.Blocks(theme=seafoam, css=get_content("css/style.css")) as demo:
 
     # handling player info
     with gr.Row():
-        player_backend_id = gr.Textbox("", visible=False, elem_id="player_backend_id")
+        player_backend_id = gr.Textbox("", elem_id="player_backend_id", visible=False)
         player_info_query_btn = gr.Button(
             "Query", elem_id="trigger_button", visible=False
         )