Add required and optional PHP modules to WP setup

The Wordpress site health check reports the following:

• ⚠ The optional module, imagick, is not installed, or has been disabled.
• ⚠ The optional module, zip, is not installed, or has been disabled.
• ❌ The required module, gd, is not installed, or has been disabled.

More info about these modules here: https://make.wordpress.org/hosting/handbook/server-environment/#php-extensions

I suggest to add all three, unless there is a reason not to.