Merge branch '6.0' into 6.0-block-posts-scrollable

assets/sass/_theme/_configuration.sass

assets/sass/_theme/_utils.sass

assets/sass/_theme/_variables.sass

assets/sass/_theme/blocks/call_to_action.sass

assets/sass/_theme/blocks/contact.sass

assets/sass/_theme/blocks/pages.sass

assets/sass/_theme/dependencies/splide.sass

assets/sass/_theme/design-system/breadcrumb.sass

assets/sass/_theme/design-system/footer.sass

assets/sass/_theme/design-system/header.sass

assets/sass/_theme/design-system/logo.sass

assets/sass/_theme/design-system/nav.sass

assets/sass/_theme/design-system/search.sass

assets/sass/_theme/design-system/table_of_contents.sass

assets/sass/_theme/design-system/typography.sass

assets/sass/_theme/hugo-osuny.sass

assets/sass/_theme/sections/organizations.sass

assets/sass/_theme/sections/papers.sass

assets/sass/_theme/sections/persons.sass

assets/sass/_theme/utils/colors.sass