Merge branch '5-synchronise-check-synchronisation-between-event-registrations-and-linked-group' into 'master'

Resolve "Synchronise/check synchronisation between event registrations and linked group"

Closes #5

See merge request !20

Currently translated at 100.0% (245 of 245 strings)

Translation: Hack'n'Fun/AlekSIS-App-Paweljong
Translate-URL: https://translate.edugit.org/projects/hacknfun/aleksis-app-paweljong/de/

Add link to EditPersonView

See merge request !18

Use correct rule for registrations

See merge request !17

1.4.1 was apparently uploaded to PyPI out of the CI pipeline and
without a tag by @debdolph?