SES ThrottleException Now Triggers Retryable Error

Implemented a feature to handle ThrottleException errors more effectively using SES's sendRawEmail function. Previously, a 400 status with ThrottleException would not trigger retries, potentially disrupting email delivery processes. With the new update, such errors now throw a retryable provider error to ensure more robust and resilient email sending. Comprehensive testing and documentation were included to ensure this feature works seamlessly across all supported screen sizes and under various load conditions.