fix(popover): update autoAlign to work when open is initially false

[tay1orjones]

Reported on slack, autoAlign was not working if the Popover was initially closed. Example

Changelog

Changed

• add open to the useIsomorphicEffect dependency array housing the autoAlign logic

Testing / Reviewing

• Go to the popover autoAlign story, I've added a new fifth popover at the bottom of the page that has local state.
• Opening and closing this new stateful popover should show the popover being automatically aligned properly and not cut off by the bottom of the browser window.

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[tw15egan]

LGTM in the test story 👍 ✅

[carbon-bot]

Hey there! v11.21.0 was just released that references this issue/PR.