Suport offset pagination

[waiting-for-dev]

Currently, we're only supporting Relay's cursor-based pagination. This is a great algorithm, which usually outperforms traditional offset-based pagination. However, cursor pagination is usually used in infinite scroll UXs, as it tends to sort by a timestamp and, for instance, it currently doesn't support bidirectional pagination. This is a use case that often doesn't make sense for e-commerce, so it'd be good to support both algorithms.

[stale[bot]]

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