chore(deps)(deps-dev): bump unplugin-auto-import from 0.18.6 to 21.0.0

Bumps [unplugin-auto-import](https://github.com/unplugin/unplugin-auto-import) from 0.18.6 to 21.0.0.
- [Release notes](https://github.com/unplugin/unplugin-auto-import/releases)
- [Commits](unplugin/unplugin-auto-import@v0.18.6...v21.0.0)

---
updated-dependencies:
- dependency-name: unplugin-auto-import
  dependency-version: 21.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

frontend/package.json

@@ -57,7 +57,7 @@
     "sass": "^1.97.2",
     "typescript": "~5.7.3",
     "unocss": "^0.65.4",
-    "unplugin-auto-import": "^0.18.6",
+    "unplugin-auto-import": "^21.0.0",
     "unplugin-vue-components": "^0.27.5",
     "vite": "^6.4.1",
     "vitest": "^4.0.18",