Redesign news index and blogposts

assets/css/styles.css

content/news/2017-beta-released-security-audit.md

content/news/2018-1.0-released-new-funding.md

content/news/2018-briar-1.1-released.md

content/news/2019-briar-1.2-released-remote-contacts.md

content/news/2021-briar-1.3-released.md

content/news/2021-briar-1.4-released.md

content/news/2022-briar-removed-from-google-play.md

themes/briar/layouts/_default/section.html

themes/briar/layouts/_default/single.html

themes/briar/layouts/partials/head.html

themes/briar/layouts/partials/header.html