Make template nullable

[ehibes]

I am using SyliusMailer with transactional emails, where the provider is Brevo. The approach involves sending emails via a REST API, including the necessary data in JSON format within the request body.

In this setup, configuring emails in SyliusMailer does not require a Twig template. Given this use case, I would like to suggest removing the required constraint for templates in the configuration.

What do you think about removing required constraint on this configuration ?