move wrapper to js extension for backwards compatibility

package.json

@@ -27,10 +27,10 @@
     "type": "git",
     "url": "https://github.com/gchq/CyberChef/"
   },
-  "main": "./src/node/wrapper.cjs",
+  "main": "./src/node/wrapper.js",
   "exports": {
     "import": "./src/node/index.mjs",
-    "require": "./src/node/wrapper.cjs"
+    "require": "./src/node/wrapper.js"
   },
   "bugs": "https://github.com/gchq/CyberChef/issues",
   "browserslist": [

src/node/wrapper.js

@@ -7,6 +7,7 @@
  * @license Apache-2.0
  */
 
+ console.log('CJS')
 /* eslint no-global-assign: ["off"] */
 require = require("esm")(module);
 module.exports = require("./index.mjs");