implement design requirements

...eguide/templates/patterns/atoms/buttons/round_button.html

...lecules/articles/article_richtext_content_with_image.html

...patterns/molecules/articles/article_timeline_preview.html

...ates/patterns/molecules/blocks/icon_title_text_block.html

...yleguide/templates/patterns/molecules/boxes/card_box.html

...lates/patterns/molecules/boxes/image_with_button_box.html

...plates/patterns/molecules/contact/contact_footer_box.html

...mplates/patterns/organisms/articles/articles_section.html

...atterns/organisms/articles/europarl_articles_section.html

...de/templates/patterns/organisms/header/people_header.html

...ide/templates/patterns/organisms/header/photo_header.html

...tterns/organisms/header/simple_header_with_ui_switch.html

...terns/organisms/main_section/representatives_section.html

...leguide/templates/patterns/templates/contact/contact.html

...leguide/templates/patterns/templates/contact/contact.yaml

...tyleguide/templates/patterns/templates/people/person.html

src/css/molecules/carousels.pcss

src/css/molecules/switch.pcss

src/js/components/CardScroll.vue

src/js/components/HorizontalScrollable.vue