* Remove forecast option
* Update strings
* Use separate DataUpdateCoordinator for observation and forecast
* Fix tests
* Remove unneeded variable
* Separate data coordinator classes
* Use list comprehension
* Separate coordinator clasess to add type annotations
* Test the availability of the forecast sensor entity
* Add DataUpdateCoordinator types
* Use snapshot for test_sensor()
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Co-authored-by: Maciej Bieniek <478555+bieniu@users.noreply.github.com>