This update unifies Ticket Helper and Email Helper into a single extension package with one manifest.

What’s new:
- Unified ReplyZone container with separate Email Helper and Ticket Helper sections
- Independent settings page for Email Helper
- Independent settings page for Ticket Helper
- Improved UI consistency across the injected tools
- Updated Email Settings styling to match Ticket Settings
- General bug fixes and layout improvements
- Storage compatibility preserved for existing settings and profiles