feat: allow quoted email thread in reply (#12545)

This PR adds the ability to include the thread history as a quoted text

## Preview


https://github.com/user-attachments/assets/c96a85e5-8ac8-4021-86ca-57509b4eea9f

config/features.yml

@@ -220,3 +220,6 @@
   display_name: Reply Mailer Migration
   enabled: false
   chatwoot_internal: true
+- name: quoted_email_reply
+  display_name: Quoted Email Reply
+  enabled: false