fix: type missing when set moduleResolution node16+

[Timeless0911]

Summary

closes: #567

Fix cannot import typing issue when "moduleResolution": "NodeNext" in user's tsconfig.json by adding an empty package.json to the dist-types folder.

Related Links

web-infra-dev/rsbuild#2353

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[chenjiahan]

package.json should be updated too

[codspeed-hq]

CodSpeed Performance Report

Merging #568 will not alter performance

_{Comparing fix/types (1c9d239) with main (0f71812)}

Summary

✅ 5 untouched benchmarks

[Timeless0911]

package.json should be updated too

  "exports": {
    ".": {
      "types": "./dist-types/index.d.ts",
      "default": "./dist/index.js"
    },
    "./package.json": "./package.json"
  },
  "main": "./dist/index.js",
  "types": "./dist-types/index.d.ts",

Already correct I think.