feat(deps): bump @mui/styles from 5.4.1 to 5.4.2

Bumps [@mui/styles](https://github.com/mui/material-ui/tree/HEAD/packages/mui-styles) from 5.4.1 to 5.4.2.
- [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/v5.4.2/packages/mui-styles)

---
updated-dependencies:
- dependency-name: "@mui/styles"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -9,7 +9,7 @@
     "@mui/icons-material": "^5.4.2",
     "@mui/lab": "^5.0.0-alpha.69",
     "@mui/material": "^5.4.2",
-    "@mui/styles": "^5.4.1",
+    "@mui/styles": "^5.4.2",
     "cryptr": "^6.0.2",
     "dateformat": "^5.0.2",
     "dexie": "^3.0.3",