chore(deps): bump @mui/icons-material from 5.3.1 to 5.4.2 (#240)

Bumps [@mui/icons-material](https://github.com/mui/material-ui/tree/HEAD/packages/mui-icons-material) from 5.3.1 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-icons-material)

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

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package.json

@@ -16,7 +16,7 @@
     "@emotion/styled": "^11.3.0",
     "@fontsource/lexend-deca": "4.4.5",
     "@fontsource/montserrat": "4.4.5",
-    "@mui/icons-material": "5.3.1",
+    "@mui/icons-material": "5.4.2",
     "@mui/material": "5.4.2",
     "react": "17.0.2",
     "react-clock": "3.1.0",