fix: Update Textbox label and placeholder, adjust Markdown formatting

app.py

@@ -175,13 +175,13 @@ def create_demo():
 
         with gr.Row(equal_height=True):
             with gr.Column(scale=10):
-                msg = gr.Textbox(label="Type your answer here")
+                msg = gr.Textbox(show_label=False, placeholder="Type a message...")
             with gr.Column(min_width=50):
                 send_btn = gr.Button(value="Send\n", variant="primary", interactive=False, elem_id="fill-button")
 
         gr.Markdown(" ")
         gr.Markdown("---")
-        gr.Markdown("## Conversation Feedback", )
+        gr.Markdown("## Conversation Feedback")
 
         feedback_box = gr.HighlightedText(
             label="Breakdown",
@@ -302,7 +302,7 @@ def create_demo():
                 history.append(ChatMessage(
                     role="assistant",
                     content=cleaned_ideal_answer,
-                    metadata={"title": "💡 Ideal answer"},
+                    metadata={"title": "💡 Ideal answer"}
                 ))
 
             updated_label = f"Conversation turns: {current_turns}" if conversation_mode == 'Interviewer' else "Multimodal Coach Agent"