feat(server): new email template (#9528)

use `yarn af server dev:mail` to preview all mail template
fix CLOUD-93

packages/backend/server/src/mails/components/user.tsx

@@ -0,0 +1,9 @@
+import { Name } from './template';
+
+export interface UserProps {
+  email: string;
+}
+
+export const User = (props: UserProps) => {
+  return <Name>{props.email}</Name>;
+};