chore(deps): bump tailwind-merge from 2.6.1 to 3.6.0 in /client

Bumps [tailwind-merge](https://github.com/dcastil/tailwind-merge) from 2.6.1 to 3.6.0.
- [Release notes](https://github.com/dcastil/tailwind-merge/releases)
- [Commits](dcastil/tailwind-merge@v2.6.1...v3.6.0)

---
updated-dependencies:
- dependency-name: tailwind-merge
  dependency-version: 3.6.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

client/package-lock.json

@@ -84,7 +84,7 @@
     "react-resizable-panels": "^4.11.2",
     "sonner": "^1.7.4",
     "stripe": "^22.1.0",
-    "tailwind-merge": "^2.5.5",
+    "tailwind-merge": "^3.6.0",
     "tailwindcss-animate": "^1.0.7",
     "vaul": "^1.1.2",
     "zod": "4.4.3"