Merge pull request #280 from noesya/6.0

assets/js/theme/blocks/timeline.js

assets/js/theme/design-system/mainMenu.js

assets/sass/_theme/_configuration.sass

assets/sass/_theme/_utils.sass

assets/sass/_theme/_variables.sass

assets/sass/_theme/blocks/base.sass

assets/sass/_theme/blocks/call_to_action.sass

assets/sass/_theme/blocks/chapter.sass

assets/sass/_theme/blocks/contact.sass

assets/sass/_theme/blocks/datatable.sass

assets/sass/_theme/blocks/definitions.sass

assets/sass/_theme/blocks/features.sass

assets/sass/_theme/blocks/files.sass

assets/sass/_theme/blocks/gallery.sass

assets/sass/_theme/blocks/image.sass

assets/sass/_theme/blocks/key_figures.sass

assets/sass/_theme/blocks/organizations.sass

assets/sass/_theme/blocks/pages.sass

assets/sass/_theme/blocks/persons.sass

assets/sass/_theme/blocks/posts.sass