Remove node-unifi package dependency

- Add custom Unifi proxy built on existing cookie jar and httpProxy
- Change formatApiCall to emit empty string instead of undefined on missing key

package.json

@@ -22,7 +22,6 @@
     "next": "^12.3.1",
     "next-i18next": "^12.0.1",
     "node-os-utils": "^1.3.7",
-    "node-unifi": "^2.1.0",
     "pretty-bytes": "^6.0.0",
     "raw-body": "^2.5.1",
     "react": "^18.2.0",