Only set listeners when there are senders connected

[MGaetan89]

Pull request

Description

This PR updates PillarboxCastReceiverPlayer to only set listeners when there are senders connected.

Changes made

Please list the specific changes made in this pull request.

Checklist

• 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).

[github-actions]

Code Coverage

Overall Project	46.55% -0.2%	🟢
Files changed	0%	🟢

Module	Coverage
:pillarbox-cast-receiver	19.99% -3.72%	🟢

Files

Module	File	Coverage
:pillarbox-cast-receiver	PillarboxCastReceiverPlayer.kt	0% -11.19%	🟢

[StaehliJ]

I don't see where the benefits are. And what happens when something is already playing and then the first sender connect? I think some of the mediaStatusModifier that are done in some player events won't be update. So at least a first synchronization has to happen first when adding the listener don't you think?

[MGaetan89]

As we discussed, it might be overengineered to try to address this right now.
We can reevaluate later if we get or notice issues with the current implementation.