Add or complete docstrings
Remove code smells
Disable irrelevant warnings
Update translations to changed line numbers and line breaks
Move duplicated code for event field pre-population and event timezone adaption to mixins

Benjamin Hättasch authored 2 years ago and Nadja Geisler committed 2 years ago

This adapts submethods of the makemessages command to use generic forward slashes instead of os specific slashes, e.g., backslashes on windows