feat: add domain email setup

[wyatthunter2102-wq]

Summary

This PR implements domain-based email functionality using AWS SES and integrates email sending into the application.

Changes

• Added AWS SES domain email configuration
• Implemented EmailSender service using SMTP (MailKit)
• Integrated email logic into UserService
• Added required SMTP configuration to app settings
• Updated UI where needed for email-related flows

AWS Domain Setup

Configured domain verification and DKIM for SES:

CNAME Records: Email or text Wyatt Hunter for them. Or go to Domain's location

SPF Record: Email or text Wyatt Hunter for them. Or go to Domain's location

Email Configuration

"Email": {
  "From": "noreply@culinary-command.com",
  "SmtpHost": "email-smtp.us-east-2.amazonaws.com",
  "SmtpPort": 587,
  "SmtpUser": "***********************",
  "SmtpPass": "********"
}
^^^^ Email or text Wyatt Hunter SmtpUser and SmtpPass.