Update app.py

app.py

@@ -197,10 +197,17 @@ footer {
 # Interface Gradio
 def demo():
     with gr.Blocks(theme=gr.themes.Default(primary_hue="blue", secondary_hue="gray"), css=custom_css) as demo:
-        # Estado do sistema
-        vector_db = gr.State()
-        qa_chain = gr.State()
-        collection_name = gr.State()
+        # Barra superior personalizada
+        with gr.Row(visible=True, elem_id="top_bar"):
+            gr.Image(value="https://huggingface.co/front/assets/huggingface_logo-noborder.svg", 
+                     interactive=False, show_label=False, elem_classes="logo", show_toolbar=False)
+            gr.Markdown(
+                """
+                <div style="text-align:right; padding-right: 15px;">
+                    <a href="https://huggingface.co/" target="_blank" style="text-decoration:none;">
+                        <b>Voltar a Web HuggingCode <Header ou Web></logo<automations 
+Links sobre Automat
+Hugging face for debugging...
 
         # Cabeçalho
         gr.Markdown(