Improve live edge detection and provide Player extension

[StaehliJ]

Pull request

Description

The goal of this PR is to reduce the live edge detection for livestream. For live with dvr, the current player position is changing every time and it may introduce some bad detection. This PR try to reduce this effect.

If the problem persist for your use case you could try to setup how player handle live with a given item with

    val liveItem = MediaItem.Builder()
        .setLiveConfiguration(MediaItem.LiveConfiguration.Builder()
            .setTargetOffsetMs()
            .setMinOffsetMs()
            .setMaxOffsetMs()
            .build())
        .build()

Changes made

• Add Player.isAtLiveEdge.

Checklist

• Your branch has been rebased onto the main branch.
• APIs have been properly documented (if relevant).
• The documentation has been updated (if relevant).
• New unit tests have been written (if relevant).
• The demo has been updated (if relevant).
• All pull request status checks pass.

[github-actions]

Code Coverage

Overall Project	46.59%	🟢

Module	Coverage
:pillarbox-player	47.18%	🟢
:pillarbox-ui	0%	🟢

Files

Module	File	Coverage
:pillarbox-player	Player.kt	90.74%	🟢
:pillarbox-ui	ComposablePlayer.kt	0%	🟢

[MGaetan89]

Nice!