### What?
UI only issue: An array row with `required: false` and `minRows: x` was
displaying an error banner - this should only happen if one or more rows
are present.
The validation is not affected, the document still saved as expected,
but the error should not be inaccurately displayed.
### Why?
The logic for displaying the `minRow` validation error was `rows.length
> minRows` and it needs to be `rows.length > 1 && rows.length > minRows`
### How?
Updates the UI logic.
Fixes#12010