fix(FEC-7964): after first play the control bar is hidden on touch devices

[dan-ziv]

Description of the Changes

Previous logic shows the hover state on first time the player started to play.
But when we played entry with preload=auto it was still too early since props.prePlayback was still has true value in _updatePlayerHoverState what caused the method to terminate.
Change the implementation to when component did update with changes props from prePlayback to !prePlayback => show the hover state for the first time.

CheckLists

• changes have been done against master branch, and PR does not conflict
• new unit / functional tests have been added (whenever applicable)
• test are passing in local environment
• Travis tests are passing (or test results are not worse than on master branch :))
• Docs have been updated