Several feature requests

[Mikecherves]

Did not want to make multiple posts.

1. Start video over button.

Sometimes I'm not paying attention to a video and want to start it over.

2. Jump to live.

I like "remember live position" but sometimes I want to skip ahead to live.

3. Reorder media player buttons and reorder "set-up sections".

Perhaps press and hold on a button to bring up "move" command. Or reorder them in settings menu.

4. Hide UI upon seek confirmation.

When you rewind or fast forward and click to confirm the UI automatically hides on its own without having to press the back button like in official YouTube app.