Persist the Email Registry Toggle State

Currently, in FluentCRM → Emails, there's a toggle that lets you display the Email Registry (FluentSMTP), making it easy to view all sent emails, including transactional emails.

It would be very helpful if the state of this toggle could be remembered between sessions, or if users could choose to have it enabled by default.

At the moment, the toggle is always disabled by default, so we have to enable it every time we visit the page. While it's a small thing, it becomes repetitive for users who frequently work with the Email Registry.

A simple preference to persist the last selected state (or define the default behavior in settings) would noticeably improve the user experience.