fix: add stop_recording JS fallback to auto-submit Q&A

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

app.py

@@ -1097,6 +1097,19 @@ with gr.Blocks(title="MomsVoice", css=css_code) as demo:
         outputs=[answer_display, answer_audio]
     )
 
+    # Also trigger on stop_recording with JS fallback to click submit button
+    question_audio.stop_recording(
+        fn=None,
+        inputs=None,
+        outputs=None,
+        js="""() => {
+            setTimeout(() => {
+                const btn = document.querySelector('#qa_submit_btn button, #qa_submit_btn');
+                if (btn) btn.click();
+            }, 600);
+        }"""
+    )
+
     # 10. Resume button — dismiss Q&A panel, show Play to continue
     def enter_resume_state():
         status_html = """