* Fix unique ids for rainbird entities
* Update entity unique id use based on config entry entity id
* Update tests/components/rainbird/test_binary_sensor.py
Co-authored-by: Martin Hjelmare <marhje52@gmail.com>
* Rename all entity_registry variables
* Shorten long comment under line length limits
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Co-authored-by: Martin Hjelmare <marhje52@gmail.com>