Import error in node/typescript project (No "exports" main defined in .../structurae/package.json) - 4.0.x

[kloshih]

Thanks for making your work on structurae available.

Issue

I'm running into the following when using in a node / typescript project

• An import error occurs when importing symbols from structurae 4.0.x import { View } from 'structurae'

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: No "exports" main defined in /tmp/structurae-test/node_modules/structurae/package.json
    at new NodeError (node:internal/errors:371:5)
    at throwExportsNotFound (node:internal/modules/esm/resolve:453:9)
    at packageExportsResolve (node:internal/modules/esm/resolve:669:7)
    at resolveExports (node:internal/modules/cjs/loader:482:36)
    ...

Steps to Reproduce

• Minimally, create new typescript project node (package.json)
  • pnpm add structurae
  • `import { View } from 'structurae'
  • Using a basic tsconfig.json

    {
    "compilerOptions": {
    "outDir": "./lib",
    "rootDir": "./src"
    },
    "include": ["src/**/*"],
    "exclude": ["node_modules"]
    }

• Here's a bare bones project to illustrate: kloshih/structurae-test.

[zandaqo]

The issue is with Mocha's handling of ESM: https://stackoverflow.com/questions/64261239/mocha-tests-with-esm-support-for-native-es6-modules