Make the seek bar disappear automatically

[ghost]

Checklist

• [x] I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• [x] I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• [x] I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• [x] I have taken the time to fill in all the required details. I understand that the request will be dismissed otherwise.
• [x] This issue contains only one feature request.
• [x] I have read and understood the contribution guidelines.

Feature description

It is a feature in every video player except gallery's video player, when you start playing a video, after a few seconds of no input it should hide the play bar.

Why do you want this feature?

Because its annoying to manually have to hide it each time, especially when we have learned from every other video player that the bar disappears after a few seconds.

Additional information

If you prefer to have it always there for some reason, maybe you can make it configurable.