Reimplement external link icon using Fork Awesome (#791)

Simon Hollingshead

06.02.2023 989c0a5a8128f012aaa07fd5babb58f677f0eb51

 assets/scss/_content.scss

@@ -22,7 +22,10 @@

  article {
    a:where(.external-link)::after {
      content: "⬈"
      @include fa-icon;
      content: fa-content($fa-var-external-link);
      padding-left: 0.5em;
      font-size: 0.75em;
    }

    details {