Bump webpack from 5.73.0 to 5.104.1 in /frontend

Bumps [webpack](https://github.com/webpack/webpack) from 5.73.0 to 5.104.1.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Changelog](https://github.com/webpack/webpack/blob/main/CHANGELOG.md)
- [Commits](https://github.com/webpack/webpack/compare/v5.73.0...v5.104.1)

---
updated-dependencies:
- dependency-name: webpack
  dependency-version: 5.104.1
  dependency-type: direct:development
...

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

frontend/apps/remark42/package.json

@@ -124,7 +124,7 @@
     "tsconfig-paths-webpack-plugin": "^3.5.2",
     "typescript": "^4.7.4",
     "url-loader": "^4.1.1",
-    "webpack": "^5.73.0",
+    "webpack": "^5.104.1",
     "webpack-bundle-analyzer": "^4.5.0",
     "webpack-cli": "^4.10.0",
     "webpack-dev-server": "^4.9.3"