test: import all global Lumo styles in MDL visual tests (#9604)

Author: vursen

packages/master-detail-layout/test/visual/lumo/master-detail-layout.test.js

@@ -1,6 +1,6 @@
 import { fixtureSync, nextRender } from '@vaadin/testing-helpers';
 import { visualDiff } from '@web/test-runner-visual-regression';
-import '@vaadin/vaadin-lumo-styles/color-global.js';
+import '@vaadin/vaadin-lumo-styles/test/autoload.js';
 import '../../../theme/lumo/vaadin-master-detail-layout.js';
 
 window.Vaadin ||= {};