fix(ui): render singular label for ArrayCell when length is 1 (#7586)

## Description

V2 PR [here](https://github.com/payloadcms/payload/pull/7585)

- [x] I have read and understand the
[CONTRIBUTING.md](https://github.com/payloadcms/payload/blob/main/CONTRIBUTING.md)
document in this repository.

## Type of change

- [x] Bug fix (non-breaking change which fixes an issue)

## Checklist:

- [x] Existing test suite passes locally with my changes

packages/ui/src/elements/Table/DefaultCell/fields/Array/index.tsx

@@ -15,10 +15,10 @@ export const ArrayCell: React.FC<ArrayCellProps> = ({ cellData, labels }) => {
 
   const arrayFields = cellData ?? []
 
-  const label = `${arrayFields.length} ${getTranslation(
-    labels?.plural || i18n.t('general:rows'),
-    i18n,
-  )}`
+  const label =
+    arrayFields.length === 1
+      ? `${arrayFields.length} ${getTranslation(labels?.singular || i18n.t('general:rows'), i18n)}`
+      : `${arrayFields.length} ${getTranslation(labels?.plural || i18n.t('general:rows'), i18n)}`
 
   return <span>{label}</span>
 }