fix: off text tracks should be set based on current state (#4775)

Author: brandonocasey

src/js/control-bar/text-track-controls/off-text-track-menu-item.js

@@ -45,7 +45,6 @@ class OffTextTrackMenuItem extends TextTrackMenuItem {
     options.selectable = true;
 
     super(player, options);
-    this.selected(true);
   }
 
   /**

src/js/control-bar/text-track-controls/text-track-menu-item.js

@@ -76,6 +76,9 @@ class TextTrackMenuItem extends MenuItem {
         tracks.dispatchEvent(event);
       });
     }
+
+    // set the default state based on current tracks
+    this.handleTracksChange();
   }
 
   /**