Add initial player.js with video playback and controls implementation

assets/js/player.js

@@ -1,7 +1,5 @@
 'use strict';
 console.log('[Invidious Debug] player.js start');
-videojs.log.level('debug'); // Enable Video.js debug logging
-
 var player_data = JSON.parse(document.getElementById('player_data').textContent);
 var video_data = JSON.parse(document.getElementById('video_data').textContent);
 console.log('[Invidious Debug] video_data.params:', JSON.stringify(video_data.params));
@@ -27,10 +25,11 @@ var options = {
         ]
     },
     html5: {
-        preloadTextTracks: false,
         vhs: {
-            overrideNative: true
-        }
+            overrideNative: true           // always use VHS
+        },
+        nativeAudioTracks: false,          // disable native tracks***optional
+        nativeVideoTracks: false           //    – they interfere with VHS
     }
 };