refactor(email): Add recipient emails in email config (#5964)
Files to modify:


**email.rs**
  Modify existing code

**secrets_transformers.rs**
  Modify existing code

**settings.rs**
  Remove:
    - struct: pub::RecipientMails

**user.rs**
  Modify existing code

**recon.rs**
  Modify existing code

**dashboard_metadata.rs**
  Modify existing code

**types.rs**
  Modify existing code

**dashboard_metadata.rs**
  Modify existing code