fix(jsonforms-renderers): show required asterisk and errors on ArrayControl

[ginaxu1]

Resolves https://github.com/LSFLK/lsf-govtech-tnsw/issues/191

Summary

• ArrayControl shows a red asterisk when the array is required (including via allOf/if/then through useIsRequired) or has minItems of at least 1.
• minItems >= 1 is a separate rule from schema required: an empty array fails with a minItems error, not a required error, so the asterisk still shows for that case.
• Validation errors on the array are rendered under the title. uiSchema options.errorMessage replaces the default message only when the array is empty (required / minItems); other errors (e.g. maxItems) keep AJV's wording.
• Playground array fixture uses minItems: 1 and options.errorMessage.

Release notes

Array fields now show a red * when they are required or have minItems of at least 1, and show their validation error under the title. A new uiSchema option errorMessage replaces the default message when the array is empty.

Test plan

• Open a form with a required array (or minItems: 1) and confirm the title shows a red asterisk.
• Submit with an empty array and confirm the inline error appears (custom message when options.errorMessage is set).
• Add an item and confirm the error clears.
• Existing array add/remove behaviour is unchanged.
• Playground Array (objects) fixture shows * and custom empty-array error after removing all items.

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[sthanikan2000]

Thanks @ginaxu1. I edited the title (scope jsonforms-renderers) and added a Release notes section to the description, since the release script reads it and this adds a new uiSchema option; please keep both. Tests pass locally (562) and type-check is clean. Approving; the inline comments are non-blocking.

[sthanikan2000]

Re-checked after the rebase, and thanks for taking all three comments. I rendered it with real JsonForms: an array required through if/then gets the *, an empty minItems array shows the custom message, maxItems keeps AJV's wording, and the playground fixture shows the *. 586 tests pass and type-check is clean. Approving.

Non-blocking: the unit tests mock useIsRequired, so the conditional-array behaviour isn't covered by a committed test. One render test with the real provider (a schema with allOf/if/then requiring the array) would pin it.