Bump zustand from 5.0.12 to 5.0.13

Bumps [zustand](https://github.com/pmndrs/zustand) from 5.0.12 to 5.0.13.
- [Release notes](https://github.com/pmndrs/zustand/releases)
- [Commits](https://github.com/pmndrs/zustand/compare/v5.0.12...v5.0.13)

---
updated-dependencies:
- dependency-name: zustand
  dependency-version: 5.0.13
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

frontend/package.json

@@ -31,7 +31,7 @@
     "smplr": "^0.14.0",
     "tone": "^15.0.4",
     "webmidi": "^3.1.11",
-    "zustand": "^5.0.0"
+    "zustand": "^5.0.13"
   },
   "devDependencies": {
     "@tailwindcss/vite": "^4.3.0",