[DigitalPoint] Security & Passkeys 1.1.7

This is purely a cosmetic change that reworks how XenForo presents two-step verification options to users.

It changes this:

...to this:

No functional changes, just the removal of Font Awesome Duotone icon usage

There are no functional changes, just phrasing. If you override the default 30 days to trust a TFA device, the phrase presented to the user when they are choosing to trust their device is fixed to show the right number of days.

• Update for PHP 8.1
• Enforce requirement that server has OpenSSL PHP extension installed