Add proper layouts to error page (#12)

Author: joladev

config/config.exs

@@ -13,7 +13,8 @@ config :jola_dev, JolaDevWeb.Endpoint,
   adapter: Bandit.PhoenixAdapter,
   render_errors: [
     formats: [html: JolaDevWeb.ErrorHTML, json: JolaDevWeb.ErrorJSON],
-    layout: false
+    root_layout: {JolaDevWeb.Layouts, :root},
+    layout: {JolaDevWeb.Layouts, :app}
   ],
   pubsub_server: JolaDev.PubSub,
   live_view: [signing_salt: "LButKgfw"]

lib/jola_dev_web/components/layouts/app.html.heex

@@ -10,7 +10,6 @@
   </header>
 
   <main class="flex-grow">
-    <.flash_group flash={@flash} />
     {@inner_content}
   </main>
 

lib/jola_dev_web/controllers/error_html.ex

@@ -6,13 +6,6 @@ defmodule JolaDevWeb.ErrorHTML do
   """
   use JolaDevWeb, :html
 
-  # If you want to customize your error pages,
-  # uncomment the embed_templates/1 call below
-  # and add pages to the error directory:
-  #
-  #   * lib/jola_dev_web/controllers/error_html/404.html.heex
-  #   * lib/jola_dev_web/controllers/error_html/500.html.heex
-  #
   embed_templates "error_html/*"
 
   # The default is to render a plain text page based on