fix: off-by-one error in visible ranges calculation

[js0n]

Currently, there's an issue with the useVisibleRanges calculation.

For example, when a windowSize of 3 is specified, the visible range specified by { negativeRange, positiveRange } when scrolled to the end of the carousel sets the shouldUpdate state variable for 4 items instead of 3.

[changeset-bot]

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Latest commit: 5cc1cd2

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