Mark stream available on idle timeout

[allenporter]

Proposed change

Mark stream as available on idle timeout so that the frontend can still interact with it. In particular, the Frontend won't interact with camera objects that are not available e.g. from picture glance card.

I tested this manually with tcpkill to break the stream, but not add tests since we don't have any existing idle timeout tests due to raciness.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes Camera video playback fails after error on stream #67922
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
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[probot-home-assistant]

Hey there @hunterjm, @uvjustin, mind taking a look at this pull request as it has been labeled with an integration (stream) you are listed as a code owner for? Thanks!
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