replace Handlebars email templates with Svelte alternative

[maxlath]

I'm currently debugging an issue where a handlebars template calls the imgSrc function without the last optional argument, but passes instead its handlebars template context object. That should be a type error, but as Handlebars template don't have type checking, the wrong types can not be detected. As the client is now almost fully Sveltified, it seems to be right thing to do to try to get the server to use that same view rendering language here on the server.

Options:

• svelte-email (repo)