Update app.py

app.py

@@ -155,6 +155,7 @@ CSS ="""
 with gr.Blocks(css=CSS) as demo:
     chatbot = gr.ChatInterface(
         fn=chat,
+        chatbot = gr.Chatbot(height=500)
         description="""Try [Vintern-1B](https://huggingface.co/5CD-AI/Viet-InternVL2-1B) in this demo. Vintern 1B is a multimodal large language model series, featuring models of various sizes. For each size, we release instruction-tuned models optimized for multimodal tasks. Vintern-1B consists of [InternViT-300M-448px](https://huggingface.co/OpenGVLab/InternViT-300M-448px), an MLP projector, and [Qwen2-0.5B-Instruct](https://huggingface.co/Qwen/Qwen2-0.5B-Instruct).""",
         examples=[{"text": "Mô tả hình ảnh.", "files":["./demo_3.jpg"]},
                   {"text": "Trích xuất các thông tin từ ảnh.", "files":["./demo_1.jpg"]},