* Enable push notifications in settings
* Fix checkbox still checked after user denied permission
The error was related to me thinking that the value prop does anything. It didn't.
The value of the checkbox is handled by formik.
So the solution was to hook into formik and use the handler which actually changes the value.
* Add double opt-in to /notifications
* Better styling of alert in /notifications
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Co-authored-by: ekzyis <ek@stacker.news>
