Bump next in /app in the npm_and_yarn group across 1 directory (#7)

Bumps the npm_and_yarn group with 1 update in the /app directory: [next](https://github.com/vercel/next.js).


Updates `next` from 15.0.3 to 15.1.2
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.0.3...v15.1.2)

---
updated-dependencies:
- dependency-name: next
  dependency-type: direct:production
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

app/package-lock.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "axios": "^1.7.8",
     "firebase": "^11.0.2",
-    "next": "15.0.3",
+    "next": "15.1.2",
     "react": "19.0.0-rc-66855b96-20241106",
     "react-dom": "19.0.0-rc-66855b96-20241106",
     "react-icons": "^5.3.0"