Migrate entrypoint to TS

Author: RichDom2185

javascript/index.js javascript/index.tsjavascript/index.js renamed to javascript/index.ts

@@ -1,5 +1,4 @@
-// @ts-check
-import fs from "fs";
+import fs from "node:fs";
 import fse from "fs-extra";
 import util from "util";
 import path from "path";