Fix sending mail with a non-latin display name. #2102 (#2559)

* Fix sending mail with a non-latin display name. #2102

Signed-off-by: Rémi Saurel <contact@remi-saurel.com>

* Take into account the possibility that setting.MailService.From is in `name <email@address>` format. #2102

Signed-off-by: Rémi Saurel <contact@remi-saurel.com>

modules/setting/setting.go

@@ -1287,6 +1287,7 @@ type Mailer struct {
 	QueueLength     int
 	Name            string
 	From            string
+	FromName        string
 	FromEmail       string
 	SendAsPlainText bool
 
@@ -1345,6 +1346,7 @@ func newMailService() {
 	if err != nil {
 		log.Fatal(4, "Invalid mailer.FROM (%s): %v", MailService.From, err)
 	}
+	MailService.FromName = parsed.Name
 	MailService.FromEmail = parsed.Address
 
 	log.Info("Mail Service Enabled")