InfoTab: Extract useInfoTab hook and add tests

[skoeva]

This PR extracts data fetching, form state, validation, and save logic from InfoTab into a dedicated useInfoTab hook, adds 18 unit tests, and skips the getManagedNamespaceDetails call when the managed namespace list is empty.

Summary

• Extracts data fetching, form state, validation, and save logic from InfoTab into a dedicated useInfoTab hook
• Fetches getManagedNamespaceDetails only after confirming the namespace list is non-empty, avoiding a redundant az-cli call
• Adds 18 unit tests covering loading state, guard conditions, form population, validation, hasChanges tracking, and save behavior

Fixes: #119

Testing

• Run cd plugins/aks-desktop && npm test and ensure the tests pass

Screenshot

[Copilot]

Pull request overview

This PR refactors InfoTab in the AKS Desktop plugin by extracting its data-fetching, form state/validation, and save behavior into a dedicated useInfoTab hook, and adds unit tests around the new hook and its guard conditions (including skipping the details call when there are no managed namespaces).

Changes:

• Introduces a new useInfoTab hook that encapsulates managed-namespace fetch, form population, validation, change tracking, and save/update logic.
• Updates InfoTab to become a thin UI wrapper that consumes the hook’s state and handlers.
• Adds a comprehensive useInfoTab unit test suite covering fetch guards, loading/error states, validation, hasChanges, and save behavior.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
plugins/aks-desktop/src/components/InfoTab/hooks/useInfoTab.ts	New hook containing InfoTab’s fetch/state/validation/save logic and the “skip details call if list is empty” optimization.
plugins/aks-desktop/src/components/InfoTab/hooks/useInfoTab.test.ts	New unit tests for the hook’s loading/guards/form population/validation/hasChanges/save behavior.
plugins/aks-desktop/src/components/InfoTab/InfoTab.tsx	Simplifies InfoTab by delegating logic to useInfoTab and rendering from hook state.

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[Copilot]

Pull request overview

Copilot reviewed 22 out of 22 changed files in this pull request and generated 5 comments.

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