fix: import qunit-theme after container styles

Author: ignace

addon/src/index.js

@@ -1,13 +1,14 @@
 /* globals Testem */
 import 'qunit/qunit/qunit.css';
-import 'qunit-theme-ember/qunit.css';
 
 import { macroCondition, getOwnConfig, importSync } from '@embroider/macros';
 
 if (macroCondition(!getOwnConfig()?.disableContainerStyles)) {
   importSync('./test-container-styles.css');
 }
 
+import 'qunit-theme-ember/qunit.css';
+
 export { default as QUnitAdapter, nonTestDoneCallback } from './adapter';
 export { loadTests } from './test-loader';