Normalize localizations, add stub for admin/accounts

app/controllers/admin/accounts_controller.rb

@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+class Admin::AccountsController < ApplicationController
+  before_action :require_admin!
+
+  layout 'public'
+
+  def index
+  end
+
+  def show
+  end
+end