[hGrid]: Setting a paginator for an inner row-island sets a paginator for all row-island parents

[RivaIvanova]

Description

<igx-hierarchical-grid> // Does not have pagination.
    <igx-row-island>  // Has pagination.

        <igx-row-island>  // Has pagination.

            <igx-row-island>
                <igx-paginator *igxPaginator></igx-paginator>
            </igx-row-island>
        </igx-row-island>
    </igx-row-island>
</igx-hierarchical-grid>

• igniteui-angular version: master, 20.0.x, 19.2.x
• browser: any

Steps to reproduce

1. Add a hierarchical grid with 2-3 nested row islands.
2. Set a paginator for the innermost row island.

Result

All row islands have paginators.

Expected result

To be able to set a paginator only for the innermost row island.