Video component - missing bg opacity and gradient

[RenataDzotova]

Describe the bug

1. The background behind the video title should be a gradient
   "(background: linear-gradient(180deg, rgba(0, 0, 0, 0.40) 21%, rgba(10, 10, 10, 0.14) 71%, rgba(69, 69, 69, 0.00) 100%)"

2. The background behind the control panel should be #000000 40% opacity

To Reproduce

1. Hover over the video component

Current behavior

Expected behavior