eikek 4ffc8d1f14 Add support for more generic notification ...

This is a start to have different kinds of notifications. It is
possible to be notified via e-mail, matrix or gotify. It also extends
the current "periodic query" for due items by allowing notification
over different channels. A "generic periodic query" variant is added
as well.

2021-12-11 18:57:32 +01:00

230 KiB

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