Add option to show notifications in notification overview (bell)

[MPStudyly]

Currently GitHub notifications are only shown on the dashboard. We hoped to get notified via regular Nextcloud notifications, avoiding the need to keep open a tab with GitHub all the time. It would be great if it could be admin and user configurable to have this feature in addition to the dashboard overview.

[andrey18106]

Since v3.2.0 there is an option now in Admin and Personal settings to enable internal notifications for new GitHub notifications.