[trojita] /: Merge changes from topic 'calendar'

[Gerrit Code Review]

Git commit d9305635cb0c3d7c2a3409928a67ce723438778e by Gerrit Code Review, on behalf of Jan Kundrát.
Committed on 20/05/2019 at 12:50.
Pushed by gerrit into branch 'master'.

Merge changes from topic 'calendar'

* changes:
  GUI: detect some calendaring events
  Fix a typo


https://commits.kde.org/trojita/d9305635cb0c3d7c2a3409928a67ce723438778e