EuiDataGrid column selection overflows document height with large number of fields

[walterra]

For data grid configurations with a lot of columns (e.g. filebeat based indices have 1000+ fields), the dropdown to select columns will overflow the page height like this:

If you then scroll down the list of fields, the page itselfs moves out of the visible area:

A possible solution to solve this could be to make the dropdown scrollable within a limited height.

[snide]

I'll fix this one quickly. Sorry @walterra