Add updated files

app.py

@@ -452,7 +452,7 @@ with gr.Blocks(css=custom_css, title="EcoQueryQuest") as demo:
                 drip_feedback = gr.HTML("<div class='feedback-box'>Waiting for your first query...</div>")
             
             with gr.Column(scale=2):
-                model_selector = gr.Dropdown(choices=list(MODELS.keys()), value="GPT-5.4", label="Select Target LLM Backend", elem_classes=["custom-dropdown"], interactive=True, allow_custom_value=False)
+                model_selector = gr.Dropdown(choices=list(MODELS.keys()), value="GPT-5.4", label="Select Target LLM Backend", elem_classes=["custom-dropdown"], interactive=True, allow_custom_value=False, filterable=False)
                 with gr.Row(elem_classes=["input-row"]):
                     user_input = gr.Textbox(show_label=False, placeholder="Type your query here...", elem_classes=["custom-textbox"], scale=4, lines=3)
                     submit_btn = gr.Button("Send Query", elem_classes=["custom-btn"], scale=1)