build(deps): bump firebase from 12.17.1 to 12.18.0 in /frontend

Bumps [firebase](https://github.com/firebase/firebase-js-sdk) from 12.17.1 to 12.18.0.
- [Release notes](https://github.com/firebase/firebase-js-sdk/releases)
- [Changelog](https://github.com/firebase/firebase-js-sdk/blob/main/CHANGELOG.md)
- [Commits](https://github.com/firebase/firebase-js-sdk/compare/firebase@12.17.1...firebase@12.18.0)

---
updated-dependencies:
- dependency-name: firebase
  dependency-version: 12.18.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

frontend/package.json

@@ -46,7 +46,7 @@
     "date-fns": "^4.4.0",
     "embla-carousel-react": "^8.6.0",
     "ethers": "^6.17.0",
-    "firebase": "^12.17.1",
+    "firebase": "^12.18.0",
     "geist": "^1.7.2",
     "input-otp": "^1.5.0",
     "lucide-react": "^1.17.0",