cherry-pick(#29692): docs: better addLocatorHandler example in release notes (#29697)

This PR cherry-picks the following commits:

- 321e9d7

Author: playwrightmachine

docs/src/release-notes-js.md

@@ -13,13 +13,15 @@ import LiteYouTube from '@site/src/components/LiteYouTube';
 - New method [`method: Page.addLocatorHandler`] registers a callback that will be invoked when specified element becomes visible and may block Playwright actions. The callback can get rid of the overlay. Here is an example that closes a cookie dialog when it appears:
 ```js
 // Setup the handler.
-await page.addLocatorHandler(page.getByRole('button', { name: 'Accept all cookies' }), async () => {
-  await page.getByRole('button', { name: 'Reject all cookies' }).click();
-});
-
+await page.addLocatorHandler(
+    page.getByRole('heading', { name: 'Hej! You are in control of your cookies.' }),
+    async () => {
+      await page.getByRole('button', { name: 'Accept all' }).click();
+    });
 // Write the test as usual.
-await page.goto('https://example.com');
-await page.getByRole('button', { name: 'Start here' }).click();
+await page.goto('https://www.ikea.com/');
+await page.getByRole('link', { name: 'Collection of blue and white' }).click();
+await expect(page.getByRole('heading', { name: 'Light and easy' })).toBeVisible();
 ```
 
 - `expect(callback).toPass()` timeout can now be configured by `expect.toPass.timeout` option [globally](./api/class-testconfig#test-config-expect) or in [project config](./api/class-testproject#test-project-expect)