type: module in codemirror-extensions-basic-setup (#702)

Author: PuruVJ

extensions/basic-setup/package.json

@@ -6,6 +6,7 @@
   "funding": "https://jaywcjlove.github.io/#/sponsor",
   "author": "kenny wong <[email protected]>",
   "license": "MIT",
+  "type": "module",
   "main": "./cjs/index.js",
   "module": "./esm/index.js",
   "exports": {