Update the auth page to remove the images.

lib/decentralised_book_index_web/auth_overrides.ex

@@ -9,10 +9,12 @@ defmodule DecentralisedBookIndexWeb.AuthOverrides do
 
   # For a complete reference, see https://hexdocs.pm/ash_authentication_phoenix/ui-overrides.html
 
-  # override AshAuthentication.Phoenix.Components.Banner do
+  override AshAuthentication.Phoenix.Components.Banner do
   #   set :image_url, "https://media.giphy.com/media/g7GKcSzwQfugw/giphy.gif"
   #   set :text_class, "bg-red-500"
-  # end
+    set :image_url, nil
+    set :dark_image_url, nil
+  end
 
   # override AshAuthentication.Phoenix.Components.SignIn do
   #  set :show_banner, false