fix: add exports.{import,require}.types

[azu]

I've noticed that a single types fields refer to CJS or ESM d.ts in dual package.
It is unnatural.

However, I cound not found which is better.

  "exports": {
    ".": {
      "import": {
        "types": "./module/index.d.ts",
        "default": "./module/index.js"
      },
      "require": {
        "types": "./lib/index.d.ts",
        "default": "./lib/index.js"
      },
      "default": "./lib/index.js"
    }
  }

or

  "exports": {
    ".": {
      "types": {
        "import": "./module/index.d.ts",
        "require": "./lib/index.d.ts"
      },
      "import": "./module/index.js",
      "require": "./lib/index.js",
      "default": "./lib/index.js"
    }
  }

I've take first pattern

Realated

• package.json exports resolution uses fallback conditions, unlike Node microsoft/TypeScript#50762
• TSC throws an error when compiling with "moduleResolution": "NodeNext" pmndrs/zustand#1381
• Add scripts that modify the package.json before publishing tajo/ladle#275
  • https://www.npmjs.com/package/@ladle/react?activeTab=explore

fix #2