chore: move the go code into a subfolder

apps/api/internal/notification/channels/smtp/config.go

@@ -0,0 +1,23 @@
+package smtp
+
+type Config struct {
+	SMTP           SMTP
+	Tls            bool
+	From           string
+	FromName       string
+	ReplyToAddress string
+}
+
+type SMTP struct {
+	Host     string
+	User     string
+	Password string
+}
+
+func (smtp *SMTP) HasAuth() bool {
+	return smtp.User != "" && smtp.Password != ""
+}
+
+type ConfigHTTP struct {
+	Endpoint string
+}