Add `onOverflowChange` callback to `ScrollArea.Autosize`

[pfo-omicsstudio]

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This PR adds a new onOverflowChange?: (overflowing: boolean) => void prop to ScrollArea.Autosize.

It fires when content starts or stops exceeding max-height, enabling consumers to react when the container becomes scrollable.

https://github.com/user-attachments/assets/e43d5e79-934f-4907-9326-40c816c5bb46