As title says. Users appreciate when they can take quick actions.
Solution:
Now the notification has two links, one to the issue announced and another one to the newsletter. I don't think the Notifications framework allows for a third link:
https://www.mediawiki.org/wiki/Notifications/Developer_guide#Defining_a_notification
Declined?
This can at least be done for Email Notifications, where multiple actions are possible.
Flow Email notifications are like this:
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Ah, if email notifications allow for more flexibility then yes, why not.
This might even be relatively simple to implement?