feat: Locale of browser determines the default language The locale chosen by the user seems a sane default for the default loclae of the application. To safely determine the browsers locale, locale2 was chosen. Localizations were renewed. Configuration variable is no longer needed in .env.sample de_DE localization is not needed. de_AT is needed.

#Name of the application, e.g. displayed at login time
VUE_APP_TITLE=Waterway Monitoring system

#Backend URL
VUE_APP_API_URL=/api/

#URL of secondary logo
VUE_APP_SECONDARY_LOGO_URL=

#Path of vendored images is copied during a webpack build
VUE_APP_VENDOR_IMG_PATH=