Fix Gradio 5 launch compatibility

app.py

@@ -136,7 +136,7 @@ CSS = """
 """
 
 
-with gr.Blocks(title="Dynamic LLM ZeroGPU Playground") as demo:
+with gr.Blocks(title="Dynamic LLM ZeroGPU Playground", css=CSS) as demo:
     gr.Markdown(
         """
         # Dynamic LLM ZeroGPU Playground
@@ -186,7 +186,7 @@ with gr.Blocks(title="Dynamic LLM ZeroGPU Playground") as demo:
             )
             top_p = gr.Slider(label="Top-p", minimum=0.05, maximum=1, value=0.95, step=0.05)
 
-    chatbot = gr.Chatbot(type="messages", height=520)
+    chatbot = gr.Chatbot(type="messages", height=520, allow_tags=False)
     gr.ChatInterface(
         fn=chat_with_model,
         chatbot=chatbot,
@@ -231,4 +231,4 @@ with gr.Blocks(title="Dynamic LLM ZeroGPU Playground") as demo:
 
 if __name__ == "__main__":
     demo.queue(default_concurrency_limit=1)
-    demo.launch(css=CSS, mcp_server=True)
+    demo.launch(mcp_server=True)