Update app_recon.py

app_recon.py

@@ -278,9 +278,9 @@ def run_demo():
             recon_btn = gr.Button('Is there a salient foreground object? If yes, Click here to Reconstruct its 3D model.', variant='primary', interactive=True)
 
         with gr.Row():
-            gr.Column():
+            with gr.Column():
                 masked_image = gr.Image(interactive=False, label="Masked foreground.")
-            gr.Column():
+            with gr.Column():
                 reconstructed_3d = gr.Model3D(
                     label = 'Bini post-processed 3D model', height=320, interactive=False,
                 )