[feature] Don't fetch data immediately after doubletap for skip was pressed

[NChechulin]

If user wants to skip 30 seconds of a video (with skip forward length set to 10 seconds), user has to doubletap multiple times. The problem is that user cant doubletap for second time before the data was fetched.

So, my suggestion is to start fetching the data only when some time passed after last doubletap, like it's done in YouTube official mobile app.