Changed settings length struct

modules/config/config.go

@@ -38,7 +38,12 @@ type rabbitmq struct {
 }
 
 type settings struct {
-	ExpiredTime    int
+	ExpiredTime       int
+	DefaultLanguageId int
+	Lengths           settingsLengths `toml:"lengths"`
+}
+
+type settingsLengths struct {
 	UsernameMinLen int
 	UsernameMaxLen int
 	EmailMinLen    int