More event information in calendar activity notifications for new or changed events

[egabosh]

Is your feature request related to a problem? Please describe.
When we get an activity notification from the calendar app e.g. an event changed or is new in this notification are only few informations about the event (only title). Its frustrating to have to look at the event in the calendar to see what has changed.

Describe the solution you'd like
At the moment there is only an information in the activity notification what event was changed. Thats it. It would be great to get more informations about date/time and description of the Event in the nitification.

Describe alternatives you've considered
We were coming from a Horde installation to Nextcloud. In the notifications from Horde we got this informations about event change or new created.