93921: ui: collapse these if statements r=matthewtodd a=matthewtodd

Epic: None
Release note: None

93922: ui: update cluster-ui to 23.1.0-prerelease.2 r=matthewtodd a=matthewtodd

Just a quick bug fix and some cleanup in this one:

```
$ git log --format=%s --no-merges \
  `@cockroachlabs/[email protected]` \
  pkg/ui/workspaces/cluster-ui \

ui: update cluster-ui to 23.1.0-prerelease.2
ui: refresh nodes on tenants
ui: remove unused nodeNames property
```

Epic: None
Release note: None


Co-authored-by: Matthew Todd <[email protected]>