Removed depricated one

app.py

@@ -496,8 +496,12 @@ with gr.Blocks() as demo:
             act_btn = gr.Button("Compute activations")
             act_msg = gr.Markdown()
         with gr.Column(scale=2):
-            act_preview = gr.Gallery(label="Activation previews", elem_id="act_gallery").style(grid=[2], height="auto")
-
+            act_preview = gr.Gallery(
+            label="Activation previews",
+            elem_id="act_gallery",
+            columns=2,
+            height="auto"
+             )
     # state store for model object & nx graph
     state = gr.State()