Add support for "picture in picture"

[jose-nunez]

I tried adding unit tests, but it seems like the TS transpiler (ts-react-toolbox) has an outdated TS version and thus, it does not support PictureInPicture API.
I didn't take the time to see how to upgrade the underlying tooling. Maybe @zzarcon can have a look at that?

yarn test __tests__/index.tsx
yarn run v1.22.19
$ ts-react-toolbox test __tests__/index.tsx
 FAIL  __tests__/index.tsx
  ● Test suite failed to run

    src/video.tsx:262:29 - error TS2339: Property 'pictureInPictureElement' does not exist on type 'Document'.

    262     return !!getDocument()?.pictureInPictureElement;
                                    ~~~~~~~~~~~~~~~~~~~~~~~
    src/video.tsx:267:29 - error TS2339: Property 'pictureInPictureEnabled' does not exist on type 'Document'.

    267     return !!getDocument()?.pictureInPictureEnabled && sourceType === 'video';
                                    ~~~~~~~~~~~~~~~~~~~~~~~
    src/video.tsx:271:53 - error TS2339: Property 'exitPictureInPicture' does not exist on type 'Document'.

    271     this.isPictureInPictureActive && getDocument()?.exitPictureInPicture();
                                                            ~~~~~~~~~~~~~~~~~~~~
    src/video.tsx:280:36 - error TS2339: Property 'requestPictureInPicture' does not exist on type 'HTMLVideoElement'.

    280       await this.videoRef.current?.requestPictureInPicture();
                                           ~~~~~~~~~~~~~~~~~~~~~~~

Test Suites: 1 failed, 1 total
Tests:       0 total
Snapshots:   0 total
Time:        3.193 s
Ran all test suites matching /__tests__\/index.tsx/i.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command

[zzarcon]

Is it worth having a retry mechanism? aka, try again when the video finish loading

[jose-nunez]

I mean, not binary fully loaded, but the first bytes (i.e. no internet connection or similar).
The component should fall into an error state in these cases. Therefore, no need to auto retry here, I believe