set type module, simplify tests, update deps

test/e2e/addCustomTodoList.test.js

@@ -0,0 +1,12 @@
+import { expect, test } from '@playwright/test';
+import '../coverage.js';
+
+test('Add custom to-do list', async ({ page }) => {
+  await page.goto('http://localhost:8080');
+
+  const add = page.locator('.todo-frame.-custom .add');
+  await add.click();
+
+  const title = page.locator('.todo-custom-list > .header > .title');
+  await expect(title).toHaveText('...');
+});