feat: fixes #523. Remove the default export from plugins

plugins/lighthouse/src/index.ts

@@ -14,5 +14,5 @@
  * limitations under the License.
  */
 
-export { default } from './plugin';
+export { plugin } from './plugin';
 export * from './api';

plugins/lighthouse/src/plugin.ts

@@ -19,7 +19,7 @@ import AuditList from './components/AuditList';
 import AuditView from './components/AuditView';
 import CreateAudit from './components/CreateAudit';
 
-export default createPlugin({
+export const plugin = createPlugin({
   id: 'lighthouse',
   register({ router }) {
     router.registerRoute('/lighthouse', AuditList);