add source code to footer, remove unneeded layouts

lib/layouts/index_layout.ex

@@ -6,9 +6,7 @@ defmodule MonoTab.IndexLayout do
     ~H"""
     <h1>{@page[:title] || "Latest Posts"}</h1>
 
-    <%= if @page[:description] do %>
-      <p>{@page[:description]}</p>
-    <% end %>
+    {{:safe, render(@inner_content)}}
 
     <%= if assigns[:posts] && length(@posts) > 0 do %>
       <ul>
@@ -27,8 +25,6 @@ defmodule MonoTab.IndexLayout do
     <% else %>
       <p>No posts found.</p>
     <% end %>
-
-    {{:safe, render(@inner_content)}}
     """
   end