Update Sync and minor things

src/Controls/Sync.astro

@@ -95,4 +95,10 @@ SyncVideo.addEventListener(
 function SyncTimestamp() {
     SyncAudio.currentTime = SyncVideo.currentTime
 }
+</script>
+
+<script define:vars={{PlayerName}}>
+    var Player = document.querySelector('#zorn-player-' + PlayerName + ' audio')
+    var VolumeRange = document.querySelector('#zorn-player-' + PlayerName + ' .vc-volume-controller-input input')
+    VolumeRange.addEventListener("input", (event) => {Player.volume = event.target.value})
 </script>