Update build commands

Author: bhch

package.json

@@ -5,12 +5,12 @@
   "type": "module",
   "source": "./src/index.js",
   "exports": "./dist/react-json-form.modern.js",
-  "main": "./dist/react-json-form.cjs",
+  "main": "./dist/react-json-form.js",
   "module": "./dist/react-json-form.module.js",
-  "unpkg": "./dist/react-json-form.js",
+  "unpkg": "./dist/react-json-form.min.js",
   "scripts": {
-    "build": "microbundle",
-    "dev": "microbundle watch --no-compress --jsx React.createElement --output ./dev/dist/",
+    "build": "microbundle --format umd,cjs",
+    "dev": "microbundle watch --format umd,cjs --no-compress --jsx React.createElement --output ./dev/dist/",
     "lint": "eslint src"
   },
   "keywords": [],