send email to birthday-"victim"

Hi, we're using nextcloud as a central tool to manage our society an we want to automate out process of sending an email to members on there birthday., because somtime we forgot it because someone is ill or in holiday. We 've tried a lot, but nothing is really usable. I've seen that nextcloud already has the option to inform about a birthday, so i thought it would be only a modification to add the option of sending a email to the birthday child.

Thank you for opening the feature request. I think it would be a nice feature to have with slight changes:

• Users get notified by their contacts birthdays
• In the notification message 2 actions appear (eg, say happy birthday on "Talk", "send an email")