SharkIQ Hotfix - Handle current installations by using default `REGION` (#90741)
* Add default region on async_setup_entry
* Move logic to migration function
* Move update logic back to setup function, but updates the config if needed.
* Remove commented out code
* Update Tests & Config setting method
* Update homeassistant/components/sharkiq/__init__.py
Co-authored-by: Franck Nijhof <frenck@frenck.nl>
* Update homeassistant/components/sharkiq/__init__.py
Co-authored-by: Franck Nijhof <frenck@frenck.nl>
* Accept Suggestions & Formatting
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Co-authored-by: Franck Nijhof <frenck@frenck.nl>