Add typings to package.json export

[indratjhai]

When importing the package in a project made with Vite, eslint was complaining it could not find type definitions.

Could not find a declaration file for module 'vue-stripe-js'. 'projectdir/node_modules/vue-stripe-js/dist/vue-stripe.es.js' implicitly has an 'any' type.
  There are types at 'projectdir/node_modules/vue-stripe-js/types/vue-stripe.d.ts', but this result could not be resolved when respecting package.json "exports". The 'vue-stripe-js' library may need to update its package.json or typings.

This seems to be a related issue to microsoft/TypeScript#52363 which can be fixed by adding the types property under exports in package.json.

[indratjhai]

Hi @softbeehive, could you have a look into this PR when you get a chance? Let me know if I can improve the PR in any way.

[softbeehive]

Hi, thanks for your PR!

It would be nice to have a reproducible link, so we can test the issue before/after the fix. Do you have time to simulate the issue on stackblitz?

Then I can prepare minor release, probably some dev packages require updates along the way

[stephen-cli]

Hi, thanks for your PR!

It would be nice to have a reproducible link, so we can test the issue before/after the fix. Do you have time to simulate the issue on stackblitz?

Then I can prepare minor release, probably some dev packages require updates along the way

@softbeehive Hello. I've managed to reproduce the issue on Code Sandbox if that helps.
https://codesandbox.io/p/sandbox/lingering-currying-qhn9ly?file=%2Fsrc%2FApp.vue%3A3%2C9

[memcorrupt]

+1: this issue also affects my private codebase