whatsapp notification (#1651)
* feat: whatsapp
* ci: apply automated fixes
* whatsapp
* ci: apply automated fixes
* small change
* typo
* use test template
* chore: minor updates
* add test button
* fix changelog
* why?
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Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Maximilian Kaske <maximilian@kaske.org>
authored by
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