Update default domain after restore from backup

src/freedombone-restore-local

 restore_email
 restore_apps local $RESTORE_APP
 set_user_permissions
+update_default_domain
 backup_unmount_drive
 
 # ensure that all TLS certificates are pinned

src/freedombone-restore-remote

 restore_email
 restore_apps remote
 set_user_permissions
+update_default_domain
 
 # ensure that all TLS certificates are pinned
 #${PROJECT_NAME}-pin-cert all