AgGridReact: Place horizontal scroll at bottom when using side bar

I'm looking for a way to pin/place the horizontal scroll at the bottom of the grid-area for the situation when the data-content (rows) are collectively shorter than the side bar height.

Example image

Example link

I can only see this problem when:

1. using grid options

sideBar={true}
domLayout={'autoHeight'}

2. there are too few rows