Merge branch 'development' into NXSTAGE-1222-mobile

src/components.d.ts

src/components/accordion-item/accordion-item.scss

src/components/accordion-item/accordion-item.tsx

...ts/courses/hy-content-list-item/hy-content-list-item.scss

...nts/courses/hy-content-list-item/hy-content-list-item.tsx

src/components/hy-anchor-link-list/hy-anchor-link-list.scss

src/components/hy-anchor-link-list/hy-anchor-link-list.tsx

src/components/hy-anchor-link-list/readme.md

src/components/hy-tabs/hy-tabs.scss

src/components/hy-tabs/hy-tabs.tsx

src/components/icon/icon.tsx

src/components/icon/readme.md

src/components/site-header/site-header.scss

src/components/site-header/site-header.tsx

src/components/site-header/site-search/site-search.tsx

src/index.html