Add Cc and Bcc email settings

[donnapep]

Is your feature request related to a problem? Please describe

Add the ability to send emails to Cc and / or Bcc recipients.

Describe the solution you'd like

Add "Cc" Address and "Bcc" Address settings to the Settings > Emails > Settings screen (below "Reply To" Address). Each field should be able to support multiple comma-separated email addresses. When any email is sent, also send the email to the Cc and Bcc addresses.

We should perform some validation to ensure a valid email address is entered.

Additional context

p1687985509584459-slack-C02NWDZBL0H
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Describe alternatives you've considered

Whether these fields need to be configurable on a per email basis. As that would be a lot more complex, we've decided to implement this globally for now.

[merkushin]

When any email is sent, also send the email to the Cc and Bcc addresses.

Should we implement it or just rely on default implementation in WP?

[donnapep]

Should we implement it or just rely on default implementation in WP?

@merkushin Yup, I think we can just do that. Whatever solution is simplest to fulfill the requirement. 🙂

[donnapep]

I'm bumping this to a high in order to satisfy an internal request.