Changes:
- Updated the quote shown on the contact page (and disabled the unused
personalization on the page)
- Removed the "What will you be using Fleet for" question on the "Talk
to us" form on the contact page
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Improvements**
* Simplified the “Talk to us” form by removing the “What will you be
using Fleet for?” question.
* Added an organization employee-count field with required numeric
validation.
* Streamlined form prefilling and submission details for returning
users.
* Updated the testimonial section to display a consistent customer story
and logo.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->