Merge pull request #36 from 4teamwork/jone-language-improvements

Multi language / German improvements
Merge pull request #37 from 4teamwork/jone-action-group-translations

Fix action group translations for default action groups.
Implement i18nbuilder.
Add button to details for updating translations in locales directory.
Update workflow details screenshot.
Update changelog and readme.
Fix and update test locales with bin/i18n-build.