[EuiDataGrid] Investigate implementing smooth scrolling in the data grid

The purpose of this task is to investigate how to implement smooth scrolling in the data grid.

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The issue was raised on https://github.com/elastic/eui/issues/8484#issuecomment-2834504920

You can see the behavior: https://eui.elastic.co/docs/components/tabular-content/data-grid/container-constraints/#virtualization

CSS `scroll-behavior` doesn't affect it because it's `react-window`-based `scrollTo` implementation and not native `scrollIntoView` method.

This might involve custom logic similar to: https://codesandbox.io/p/sandbox/k2lpl9m0l3

We need to consider that scrolling can be on both axis.