chore: move the go code into a subfolder

apps/api/internal/domain/url_template.go

@@ -0,0 +1,23 @@
+package domain
+
+import (
+	"io"
+	"text/template"
+
+	"github.com/zitadel/zitadel/internal/zerrors"
+)
+
+func RenderURLTemplate(w io.Writer, tmpl string, data any) error {
+	return renderURLTemplate(w, tmpl, data)
+}
+
+func renderURLTemplate(w io.Writer, tmpl string, data any) error {
+	parsed, err := template.New("").Parse(tmpl)
+	if err != nil {
+		return zerrors.ThrowInvalidArgument(err, "DOMAIN-oGh5e", "Errors.User.InvalidURLTemplate")
+	}
+	if err = parsed.Execute(w, data); err != nil {
+		return zerrors.ThrowInvalidArgument(err, "DOMAIN-ieYa7", "Errors.User.InvalidURLTemplate")
+	}
+	return nil
+}