Fix unmet peer dependencies

- "@mui/system" for "@mui/x-date-pickers"
- "csstype" for "notistack > goober"
- "mui-nested-menu" is outdated and can't be fixed, but still works with "@mui/material v6.3.0"

package.json

@@ -40,8 +40,10 @@
     "@loadable/component": "5.16.4",
     "@mui/icons-material": "6.3.0",
     "@mui/material": "6.3.0",
+    "@mui/system": "6.3.0",
     "@mui/x-date-pickers": "7.23.3",
     "apollo-upload-client": "17.0.0",
+    "csstype": "3.1.3",
     "dayjs": "1.11.13",
     "file-selector": "0.6.0",
     "graphql": "16.10.0",