Bump webpack-dev-server from 4.7.4 to 4.11.1 in /web

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) from 4.7.4 to 4.11.1.
- [Release notes](https://github.com/webpack/webpack-dev-server/releases)
- [Changelog](https://github.com/webpack/webpack-dev-server/blob/master/CHANGELOG.md)
- [Commits](webpack/webpack-dev-server@v4.7.4...v4.11.1)

---
updated-dependencies:
- dependency-name: webpack-dev-server
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

web/package.json

@@ -34,7 +34,7 @@
     "style-loader": "^2.0.0",
     "webpack": "^5.11.1",
     "webpack-cli": "^4.3.0",
-    "webpack-dev-server": "^4.0.0-beta.0"
+    "webpack-dev-server": "^4.11.1"
   },
   "dependencies": {
     "fomantic-ui-css": "^2.8.7",