Fix url_for: rename send_audio_generated to rendered_audio

templates/vue3_neusik/index.html

@@ -14,7 +14,7 @@ window.NEUSICIAN_URLS = {
     astlog:  "{{ url_for('astlog') }}",
     score:   "{{ url_for('score') }}",
     status:  "{{ url_for('statusjson') }}",
-    result:      "{{ url_for('send_audio_generated') }}",
+    result:      "{{ url_for('rendered_audio') }}",
     submit:      "{{ url_for('public-yaml-acceptor') }}",
     audiowidget: "{{ url_for('vue3_neusik.audiowidget') }}"
 };