fix(core): update

test/test.browser.ts

@@ -1,7 +1,7 @@
 import { expect, tap, webhelpers } from '@pushrocks/tapbundle';
 webhelpers.enable();
 
-import * as websetup from '../ts/index';
+import * as websetup from '../ts/index.js';
 
 tap.test('first test', async () => {
   const websetupInstance = new websetup.WebSetup({
@@ -12,7 +12,7 @@ tap.test('first test', async () => {
     },
   });
   await websetupInstance.readyPromise;
-  expect(document.title).to.equal('mytitle');
+  expect(document.title).toEqual('mytitle');
 });
 
 tap.start();