Add Nuki battery percentage sensor (#84968)
* Nuki: add battery percentage + add to device registry
* Remove unused import
* Fixing linting and sorting issues
* Update homeassistant/components/nuki/sensor.py
Co-authored-by: Robert Svensson <Kane610@users.noreply.github.com>
* Shorthand for adding entities
* Use _attr_has_entity_name for battery sensor
* Fix linting issue
* Remove device registry changes
* Exclude from coverage
* Use _attr_ instead of properties
* Clean up
Co-authored-by: Robert Svensson <Kane610@users.noreply.github.com>
Co-authored-by: Martin Hjelmare <marhje52@gmail.com>
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