Merge branch '110-hintergrundmusik' into 'master'

Resolve "Hintergrundmusik?"

Closes #110

See merge request enrichment-2024/qivip!76

django/templates/play/game/score_overview.html

@@ -128,6 +128,9 @@
   </script>
 {% endif %}  
 {% include 'play/game/common_scripts.html' %}
+{% if is_host %}
+{% include 'play/game/sound.html' %}
+{% endif %}
 <script>
     const joinCode = '{{ quiz_game.join_code }}';
     const hostId = '{{ host_id }}';