Mark as assumed_state LG Netcast media player

[Drafteed]

Breaking change

LG Netcast media player do no longer have fake (assumed) playing or paused states and those are replaced with the on state. You need to update your automation if you are using play or pause states.

Proposed change

Since the LG Netcast devices do not provide playback status, this change marks the media player as assumed_state. This will separate play/pause buttons in the UI and get rid of cases when the play/pause button had to be pressed twice to take effect, since the real state of the TV could be differ with assumed in the integration.

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)
• Deprecation (breaking change to happen in the future)
• 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 #
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[thecode]

Thanks!