style(title): add css for title

app.py

@@ -119,7 +119,9 @@ image_filepaths = examples(dir_examples=DIR_EXAMPLES)
 default_value_input = Image.open(image_filepaths[DEFAULT_IMAGE_INDEX])
 
 with gr.Blocks() as demo:
-    gr.HTML("<h1>ML model for bear face recognition 🐻</h1>")
+    gr.HTML(
+        '<h1 style="text-align: center; margin-bottom: 1rem">ML model for bear face recognition 🐻</h1>'
+    )
     with gr.Row():
         with gr.Column():
             image_input = gr.Image(