fix(editor): restore focus after closing event popover

[abhinavohri]

Summary

• remember the focused element when the simple event editor opens
• restore focus when the editor closes if the element is still available

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[SebastianKrupinski]

Hi @abhinavohri

The ticket you linked has nothing to do with the changes you made. The ticket is about the calendar creation menu.

[abhinavohri]

Hi @SebastianKrupinski , my apologies I mixed up the issues.

I followed the steps in the #4127, and the focus went back to the + button. So I think that issue is already fixed.

If this change is still useful, should I open a new issue and update this PR to reference it, or would you prefer that I close the PR?

[SebastianKrupinski]

@abhinavohri

I can't really tell if this PR is useful as I don't have a reference of an issue. What issue does this PR solve?

[abhinavohri]

I can't really tell if this PR is useful as I don't have a reference of an issue. What issue does this PR solve?

When the simple editor is dismissed without creating an event, keyboard focus jumps to the top of the page. This PR returns focus to the element that was focused before the editor opened.