Move @swc/core to dev dependencies of react-email

[skelouse]

Describe the Bug

Added in this commit I'm not sure why this is added to dependencies and not dev dependencies.

I also found that running pnpm run build here with the package removed requests you to install it with -D

[gabrielmfern]

As mentioned on another few discussions, we do build the preview app before publishing it. At least not yet. It just isn't that trivial as it may seem with the way we are doing things.
So once you run email dev Next.js will actually compile the preview app. This is why, if we include it as a dev dependency, it might not be included into the user's installation which will break the email dev command.

Will be converting this into a discussion.

[skelouse]

Thanks for the quick response, I noticed this when reaching vercel edge function size limits. I ignore the problem files with the following config:

next.config.js

  experimental: {
    outputFileTracingIgnores: [
      '**/node_modules/@swc/core-linux-x64-gnu',
      '**/node_modules/@swc/core-linux-x64-musl',
    ],
  },

I made this issue originally to solve this in a better way, as except for email dev the user does not need this large package.

For the nextjs use case @swc/core is listed as a package that is working on an auto opt-out: https://nextjs.org/docs/app/api-reference/next-config-js/serverComponentsExternalPackages