Bump mini-css-extract-plugin from 1.6.2 to 2.10.2 in /server/frontend

Bumps [mini-css-extract-plugin](https://github.com/webpack/mini-css-extract-plugin) from 1.6.2 to 2.10.2.
- [Changelog](https://github.com/webpack/mini-css-extract-plugin/blob/main/CHANGELOG.md)
- [Commits](webpack/mini-css-extract-plugin@v1.6.2...v2.10.2)

---
updated-dependencies:
- dependency-name: mini-css-extract-plugin
  dependency-version: 2.10.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

server/frontend/package-lock.json

@@ -43,7 +43,7 @@
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^29.7.0",
     "jest-transform-stub": "^2.0.0",
-    "mini-css-extract-plugin": "^1.6.0",
+    "mini-css-extract-plugin": "^2.10.2",
     "postcss": "^8.5.12",
     "prettier": "^3.3.2",
     "vue-loader": "^17.4.2",