[BUG][iOS] call disablePictureInPicture cause origin player stop.

[namnh-0652]

History check

• Check all related issues but not the same.

Describe the bug

• Call disablePictureInPicture cause origin player stop.

To Reproduce
Steps to reproduce the behavior:

1. Open example/picture_in_picture (iOS)
2. Press show PiP (ok)
3. Press disable PiP

=> PiP stops, but the player is stopped also.

*Example code
Use example code

Expected behavior
Keeps origin player continues

Screenshots
N/A

Flutter doctor
Please add flutter doctor output here.

Better Player version

• Version: latest

Smartphone (please complete the following information):

• Device: iPhone12
• OS: 15.1.1

Additional context
N/A

[namnh-0652]

@jhomlala could you help to quick review and give me a suggestion!