Adding the `button` mixin into `input[type="submit"] caused conflicts with the other button classes (`.button-primary`) due to specificity. The button classes should be used on all buttons instead. This also updates which button on the Manage Pledge form is the "primary" action, since it's easy to skip the Update button when it's not primary.
* Add the admin email field to the manage form
* Fix admin email processing: When the email is changed, the pledge needs to be set back to pending, until the email is re-confirmed
* Send confirmation emails for existing pledges to the "Manage Pledge" page
* Process the email confirmation & resending emails actions on both shortcodes
* Add a message for unconfirmed pledges
* Use a unique text-domain, wporg-5ftf
* Fix plugin i18n strings
* Remove unwanted text-domains from WPCS checks and fix missed old text-domains
* Remove type=array from phpcs
* Re-add type=array
* Small WPCS fix
* WPCS: replace var with
This includes autofixes, along with some manual fixes; mostly syntax-related. Some `phpcs:ignore` comments were added for overzealous rules that don't apply.
