Addresses CI format:check failures and import-sort warning in
MetricsPage.test.tsx flagged by QA on PR #17.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The Headlamp useList() return type is an intersection of a tuple and
QueryListResponse, which plain array literals like [[], null] and
[null, null] do not satisfy. Cast all useList mockReturnValue arguments
to any so tsc passes without requiring full KubeObject stub objects.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>