Fix indexing files in sub-folders on the Desktop app

- `fs.readdir' func in node version 18.18.2 has buggy `recursive' option
  See nodejs/node#48640, effect-ts/effect#1801 for details

- We were recursing down a folder in two ways on the Desktop app.
  Remove `recursive: True' option to the `fs.readdirSync' method call
  to recurse down via app code only

src/interface/desktop/package.json

@@ -20,7 +20,6 @@
     "axios": "^1.6.4",
     "cron": "^2.4.3",
     "electron-store": "^8.1.0",
-    "fs": "^0.0.1-security",
     "file-type": "^16.2.0"
   }
 }