Fix display issue on iPhone where password field and toggle were over…

[kimcoleman]

…lapping other fields

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Changes proposed in this Pull Request:

Fixes display issue where password field would overlap others in the Account Information section on Membership Checkout only when the "confirm" field was also shown. This appeared to only be happening on iOS mobile devices.

Before fix - overlap

With fix - no overlap

In tests, this was not an issue on the regular password login / reset fields OR on the logged in profile edit > change password view.

Other information:

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