Replace wrong name reference of binary jvc_power sensor in jvc_projector

[NoRi2909]

Proposed change

The jvc_power binary sensor (on / off) incorrectly references the "Power" sensor name which is for the wattage of an entity or device.

This results in completely wrong translations of this entity name:

Replacing it with the binary sensor name that should have this correct (if translators get the generic translation right …).

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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[home-assistant]

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

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