Add syntax highlighting, support draft posts

pages/layout.rb

@@ -34,6 +34,7 @@ module Pages
           meta(charset: "utf-8")
           meta(name: "viewport", content: "width=device-width, initial-scale=1.0")
           link(rel: "stylesheet", href: "/tailwind.css")
+          link(rel: "stylesheet", href: "/prism/prism.css")
 
           script(defer: true, 'data-domain' => "farthergate.com", src: "https://plausible.farthergate.com/js/script.js")
 
@@ -65,6 +66,8 @@ module Pages
             p { "built with phlexite and tailwindcss" }
             p { "© #{Time.now.year} Aleks Rūtiņš" }
           }
+
+          script(src: "/prism/prism.js")
         }
       }
     end