Move notifications to tray controller

test/controllers/notifications/trays_controller_test.rb

@@ -0,0 +1,14 @@
+require "test_helper"
+
+class Notifications::TraysControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    sign_in_as :kevin
+  end
+
+  test "show" do
+    get notifications_tray_url
+
+    assert_response :success
+    assert_select "div", text: /Layout is broken/
+  end
+end