Add autoren and artikel for public viewing

lib/outlook_web/controllers/autor_html/show.html.heex

@@ -0,0 +1,16 @@
+<.header>
+  <%= @autor.name %>
+  <:subtitle><div class="text-lg mb-2"><%= @autor.description %></div></:subtitle>
+  <:subtitle><.link href={@autor.homepage_url}><%= @autor.homepage_name %></.link></:subtitle>
+</.header>
+
+
+
+<%= for article <- @autor.articles do %>
+  <div :for={translation <- article.translations} class="my-2 px-2 rounded border-2 border-solid border-gray-300">
+    <.link navigate={~p"/artikel/#{translation}"}><h4 class="font-bold py-2"><%= translation.title %></h4></.link>
+    <div><%= translation.teaser %></div>
+  </div>
+<% end %>
+
+<.back navigate={~p"/autoren"}>Back to autoren</.back>