Merge branch 'feature/ISTWCMS-4621-m26lebla-add-search-to-header' into '8.x-3.x'

css/styles.css

js/component_scripts.min.js

source/_patterns/00-config/01-mixins/_mixins.button.scss

...e/_patterns/02-base/02-html-elements/25-forms/_forms.scss

...ce/_patterns/02-base/02-html-elements/25-forms/forms.twig

source/_patterns/02-base/02-html-elements/25-forms/forms.yml

...e/_patterns/02-base/02-html-elements/27-input/_input.scss

...ce/_patterns/02-base/02-html-elements/27-input/input.twig

source/_patterns/02-base/02-html-elements/27-input/input.yml

source/_patterns/03-layouts/footer/_footer.scss

source/_patterns/03-layouts/footer/footer.twig

source/_patterns/03-layouts/header/_header.scss

source/_patterns/03-layouts/header/header.twig

source/_patterns/03-layouts/header/header.yml

...e/_patterns/03-layouts/site-container/site-container.twig

...ce/_patterns/03-layouts/site-container/site-container.yml

source/_patterns/04-components/button/button.twig

source/_patterns/04-components/button/button.yml

source/_patterns/04-components/color-bar/_color-bar.scss

...s/04-components/menu/menu--horizontal/menu--horizontal.js