⬆️ Bump @mui/icons-material from 6.2.0 to 6.3.1 in /web/app

Bumps [@mui/icons-material](https://github.com/mui/material-ui/tree/HEAD/packages/mui-icons-material) from 6.2.0 to 6.3.1.
- [Release notes](https://github.com/mui/material-ui/releases)
- [Changelog](https://github.com/mui/material-ui/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mui/material-ui/commits/v6.3.1/packages/mui-icons-material)

---
updated-dependencies:
- dependency-name: "@mui/icons-material"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

web/app/package.json

@@ -13,7 +13,7 @@
     "@emotion/styled": "^11.14.0",
     "@fontsource/roboto": "^5.1.1",
     "@monaco-editor/react": "^4.6.0",
-    "@mui/icons-material": "^6.2.0",
+    "@mui/icons-material": "^6.3.1",
     "@mui/material": "^6.3.1",
     "@mui/x-date-pickers": "^7.23.3",
     "@toolpad/core": "^0.11.0",