Add Support for Email Notifications

[Somya2010]

Description

The project should notify users via email when critical events occur. Adding this feature will improve its usability and alert capabilities.

Steps to Implement

1. Integrate an email service provider (e.g., SMTP, SendGrid).
2. Create a configuration file for email settings.
3. Add methods to send email notifications based on trigger events.
4. Write unit tests for the notification system.

Expected Outcome

Users receive email notifications for critical events.