build(electron): use nx (#2942)

packages/i18n/package.json

@@ -16,6 +16,7 @@
   },
   "scripts": {
     "build": "node build.mjs",
+    "dev": "node dev.mjs",
     "sync-languages": "NODE_OPTIONS=--experimental-fetch ts-node-esm src/scripts/sync.ts",
     "sync-languages:check": "yarn run sync-languages --check",
     "download-resources": "NODE_OPTIONS=--experimental-fetch ts-node-esm src/scripts/download.ts"