Selects the child layer paths for a specific layer.
Uses useStableSelector with shallowObjectEqual so the component only re-renders
when children are added, removed, or reordered — not when a descendant's property changes.
Parameters
layerPath: string
The layer path to look up
Returns string[]|undefined
The child layer paths, or undefined if no children exist
Selects the child layer paths for a specific layer.
Uses useStableSelector with shallowObjectEqual so the component only re-renders when children are added, removed, or reordered — not when a descendant's property changes.