Bump braces and filemanager-webpack-plugin in /web-front

Bumps [braces](https://github.com/micromatch/braces) to 3.0.3 and updates ancestor dependency [filemanager-webpack-plugin](https://github.com/gregnb/filemanager-webpack-plugin). These dependencies need to be updated together.


Updates `braces` from 3.0.2 to 3.0.3
- [Changelog](https://github.com/micromatch/braces/blob/master/CHANGELOG.md)
- [Commits](https://github.com/micromatch/braces/compare/3.0.2...3.0.3)

Updates `filemanager-webpack-plugin` from 2.0.5 to 8.0.0
- [Release notes](https://github.com/gregnb/filemanager-webpack-plugin/releases)
- [Changelog](https://github.com/gregnb/filemanager-webpack-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gregnb/filemanager-webpack-plugin/compare/v2.0.5...v8.0.0)

---
updated-dependencies:
- dependency-name: braces
  dependency-type: indirect
- dependency-name: filemanager-webpack-plugin
  dependency-type: direct:development
...

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

web-front/package.json

@@ -26,7 +26,7 @@
     "vue-template-compiler": "^2.6.14",
 
     "compression-webpack-plugin": "^6.1.1",
-    "filemanager-webpack-plugin": "2.0.5"
+    "filemanager-webpack-plugin": "8.0.0"
   },
   "eslintConfig": {
     "root": true,