Show draft/scheduled status banners for authenticated users

app/lib/firehose_web/controllers/blog_controller.ex

@@ -22,11 +22,14 @@ defmodule FirehoseWeb.BlogController do
   def show(conn, %{"slug" => slug}) do
     blog = conn.assigns.blog
     post = blog.get_post!(slug)
+    visibility = Blogex.Post.visibility(post)
 
     render(conn, :show,
       page_title: post.title,
       post: post,
-      base_path: blog.base_path()
+      base_path: blog.base_path(),
+      visibility: visibility,
+      authenticated: conn.assigns[:current_user] != nil
     )
   end