[t94] - Rebase and fix for timeline scrolling
[t94] - Rebase and fix for timeline scrolling

Just fixed references to timeline elements to get scrolling working after rebase again.

mozilla/butter,mozilla/butter,mbuttu/butter,mbuttu/butter,BBGInnovate/butter,BBGInnovate/butter,robinparadise/videoquizmaker,robinparadise/videoquizmaker,mbuttu/butter