bug: implement missing bringToFront function

[gyaaniguy]

Currentlty the following causes a crash

$context = Playwright::chromium(["headless" => false]);
$page = $context->newPage();
$page->bringToFront();

This is because bringToFront has not been implemented .

$page->bringToFront(); helps to remove focus from address bar towards the page

[codecov]

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✅ All modified and coverable lines are covered by tests.

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[smnandre]

Good catch, thx @gyaaniguy !