Issue with package.json "exports" and TypeScript

I am unable to use the latest release version of itk-wasm (1.0.0-b.8) with TypeScript 4.6. When compiling and executing my script which imports from itk-wasm, this error is thrown:

`Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: No "exports" main defined in /node_modules/itk-wasm/package.json`

I have created a basic example project which reproduces the issue: [itk-wasm-ts-test](https://github.com/ty-ler/itk-wasm-ts-test)

It seems that the "exports" field in package.json is unsupported in versions of TypeScript lower than 4.7 (which is currently just in beta). More discussion on the issue can be found here:
- https://github.com/microsoft/TypeScript/issues/33079
- [TypeScript 4.7 announcement](https://devblogs.microsoft.com/typescript/announcing-typescript-4-7-beta/#package-json-exports-imports-and-self-referencing)