fix(viewer): add missing parenthesis in Python SDK code rendering

[maxloge]

Description

This fixes a bug in BatchCheckRequestViewer.tsx where the Python SDK code generator was emitting ClientBatchCheckItem calls without a closing parenthesis, resulting in invalid Python examples on the site. Each ClientBatchCheckItem(...) is now properly closed with ) and items are separated with commas, producing valid Python syntax.

# current rendering
checks = [
  ClientBatchCheckItem(
    user="user:anne",
    relation="writer",
    object="document:Z",
    correlation_id="886224f6-04ae-4b13-bd8e-559c7d3754e1",
  ClientBatchCheckItem(
    user="user:anne",
    relation="reader",
    object="document:Z",
    correlation_id="da452239-a4e0-4791-b5d1-fb3d451ac078"
]

# updated rendering
checks = [
  ClientBatchCheckItem(
    user="user:anne",
    relation="writer",
    object="document:Z",
    correlation_id="886224f6-04ae-4b13-bd8e-559c7d3754e1"
  ),
  ClientBatchCheckItem(
    user="user:anne",
    relation="reader",
    object="document:Z",
    correlation_id="da452239-a4e0-4791-b5d1-fb3d451ac078"
  )
]

Also, Prettier was run on the file and updated lines 234 and 235.

References

The bug appears in these pages:

• Python example in "Perform Check - Calling Batch Check API": https://openfga.dev/docs/getting-started/perform-check#03-calling-batch-check-api
• Python example in "Interacting - Relationship Queries - When to use": https://openfga.dev/docs/interacting/relationship-queries#when-to-use-1

Review Checklist

• I have clicked on "allow edits by maintainers".
• I have added documentation for new/changed functionality in this PR or in a PR to openfga.dev [Provide a link to any relevant PRs in the references section above]
• The correct base branch is being used, if not main
• I have added tests to validate that the change in functionality is working as expected

[linux-foundation-easycla]

• ✅login: maxloge / (570edc1)

The committers listed above are authorized under a signed CLA.

[rhamzeh]

Thanks @maxloge !