fix: bring page to front when isolation is turned on

[shadowusr]

What's done?

Context:

• Isolation works by creating new browsing context, essentially meaning creating a new tab or window
• When we perform isolation on older browsers, the window becomes not focused until the next iteration
• This leads to "focus" states on elements to be absent in that window
• We didn't see this issue in Testplane 8, because resetCursor was true by default and cursor reset brings the window into focus
• On Testplane 9, resetCursor is false by default and this issue became apparent
• Interestingly, this issue won't reproduce on newer browsers like Chrome 144. Supposedly, due to this commit: https://chromium.googlesource.com/chromium/src/+/b5c6f8ac5bb0947e3b772b32350132dfa6426847 that changes the way session window works.

How I tested?

Reproduced the issue on the following minimal case:

await browser.url("https://nda.ya.ru/t/Hbwgz3kb7jqnAM");

await browser.pause(3000);

await browser.saveScreenshot('screenshot-focus.png');

On chrome 123 running with selenoid locally, with headless=false, resetCursor=false, isolation=true.

Verified that this issue went away after the fix.

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✅ Testplane browser-env run succeed

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commit: 8c90506