fix(deps): Update unocss requirement from ^0.59.0 to ^0.59.4 in /example

Updates the requirements on [unocss](https://github.com/unocss/unocss) to permit the latest version.
- [Release notes](https://github.com/unocss/unocss/releases)
- [Commits](unocss/unocss@v0.59.0...v0.59.4)

---
updated-dependencies:
- dependency-name: unocss
  dependency-type: direct:production
...

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

example/package.json

@@ -10,7 +10,7 @@
   },
   "dependencies": {
     "ping.js": "^0.3.0",
-    "unocss": "^0.59.0",
+    "unocss": "^0.59.4",
     "v-github-icon": "^3.2.1",
     "v-offline": "^3.5.0",
     "vue": "^3.4.21"