Fix mobile view Bugs and add versions to static files for cache breaking

public/js/audio-player.js

@@ -5,12 +5,18 @@
     return $('#poi-audio')[0];
   }
 
+  function mediaUrl(url) {
+    if (!url) return '';
+    const separator = url.includes('?') ? '&' : '?';
+    return `${url}${separator}v=${Date.now()}`;
+  }
+
   function unload() {
     const audio = element();
     audio.pause();
     audio.removeAttribute('src');
     audio.load();
-    $(audio).prop('hidden', true);
+    $(audio).attr('hidden', '').hide();
   }
 
   ns.AudioPlayer = {
@@ -19,8 +25,8 @@
       if (!url) return;
 
       const audio = element();
-      audio.src = url;
-      $(audio).prop('hidden', false);
+      audio.src = mediaUrl(url);
+      $(audio).removeAttr('hidden').css('display', 'block');
       audio.load();
     },