build(npm): bump version -> 4.0.1

Author: ArrayZoneYour

package.json

@@ -5,6 +5,7 @@
   "main": "./dist/react-model.js",
   "module": "./dist/react-model.esm.js",
   "umd:main": "./dist/react-model.umd.js",
+  "types": "./src/index",
   "scripts": {
     "build:prod": "microbundle --define process.env.NODE_ENV=production --sourcemap false --jsx React.createElement --output dist --tsconfig ./tsconfig.json",
     "build:dev": "microbundle --define process.env.NODE_ENV=development --sourcemap true --jsx React.createElement --output dist --tsconfig ./tsconfig.json",