fix indent

app.py

@@ -175,15 +175,15 @@ with gr.Blocks(css="style.css") as demo:
                 step=1,
                 value=4,
             )
-         with gr.Row():
-             num_images = gr.Slider(
-                 label="Number of images"
-                 minimum=1,
-                 maximum=8,
-                 step=1,
-                 value=4,
-                 visible=False,
-             )
+        with gr.Row():
+            num_images = gr.Slider(
+                label="Number of images"
+                minimum=1,
+                maximum=8,
+                step=1,
+                value=4,
+                visible=False,
+            )
 
     gr.Examples(
         examples=examples,