Bump jsondiffpatch and ai in /dashboard

Removes [jsondiffpatch](https://github.com/benjamine/jsondiffpatch). It's no longer used after updating ancestor dependency [ai](https://github.com/vercel/ai). These dependencies need to be updated together.


Removes `jsondiffpatch`

Updates `ai` from 4.3.17 to 5.0.43
- [Release notes](https://github.com/vercel/ai/releases)
- [Changelog](https://github.com/vercel/ai/blob/main/CHANGELOG.md)
- [Commits](https://github.com/vercel/ai/compare/[email protected]@5.0.43)

---
updated-dependencies:
- dependency-name: jsondiffpatch
  dependency-version: 
  dependency-type: indirect
- dependency-name: ai
  dependency-version: 5.0.43
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

dashboard/package-lock.json

@@ -38,7 +38,7 @@
     "@radix-ui/react-tabs": "^1.1.2",
     "@radix-ui/react-toast": "^1.2.5",
     "@radix-ui/react-tooltip": "^1.1.7",
-    "ai": "^4.3.17",
+    "ai": "^5.0.43",
     "class-variance-authority": "^0.7.1",
     "country-flag-icons": "^1.5.19",
     "date-fns": "^4.1.0",