Popover does not close on PopoverButton click on Safari (macOS & iOS)

[Robin-w151]

Describe the bug
When the parent element of a Popover component is focusable (e.g. div with tabindex), the Popover won't close if the PopoverButton is clicked.

Affected browser: Safari (macOS & iOS)

To Reproduce
REPL

Library version
1.0.2

[Robin-w151]

When playing around with the REPL, I discovered that on Safari the PopoverButton receives focus on every click, thus the Popover is briefly closed and then opened again. I assume that Safari transfers the focus to the parent element and then again to the button element, thus a new focus event is triggered on every click.

[ondrejjcizek]

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