Hi there!
In my project I have a few engines. Each engine has its own set of Mailers and templates.
I want to have Previews for each specific engine, and keep them in engines.
I've found that ActionMailer Preview provides a way to change a path to preview classes, but looks like it's impossible to use an array of paths, or use something like `prepand_view_path / append_view_path ` like we can do in controllers.
https://github.com/rails/rails/blob/3faf7485623da55215d6d7f3dcb2eed92c59c699/actionmailer/lib/action_mailer/preview.rb#L92Is there any way to have multiple paths for ActionMailer Preview?
Is it possible to create some kind of monkey patch to implement it?
Thanks!