Update Email Approval Notification Text

# 💡 Summary #

Add the following text to the Email Approval Notification.

"After activating your CyHy Dashboard account, you may receive a survey from the CyHy Continuous Improvement Team, within a few weeks, regarding your experience. Please share your feedback, level of satisfaction with the enrollment, onboarding processes, and overall experience. Your input and participation are crucial to shaping the success of the CyHy Dashboard."

## Motivation and context ##

User Experience Improvement

## Implementation notes ##

- Update html content
- Deploy to S3 bucket

## Acceptance criteria ##

How do we know when this work is done?

- [ ] Update the existing email template with the revised text.
- [ ] Send to Step Team for sign-off
- [ ] Ensure the email includes the relevant information about the survey.
- [ ] Test the email to verify that it renders correctly in various email clients.
- [ ] Ensure all environments updated in parallel - Dev, Staging, Production