Refactor Groups Control Panel: Class Component to Functional Component

[Manik-Khajuria-5]

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Issue number

Contributes to #4460

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Description

This PR refactors the GroupsControlpanel by converting it from a legacy class-based implementation to a modern, fully hook-based functional component.

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Key Changes

• Converted GroupsControlpanel from a class component to a functional component
• Replaced lifecycle methods with useEffect
• Migrated Redux logic to useSelector and useDispatch
• Replaced instance methods with memoized callbacks using useCallback
• Preserved existing async request handling for group creation, deletion, and updates
• Ensured safe client-side portal rendering for toolbar actions
• Maintained full behavior parity with the previous implementation

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