AutoFitting all columns should not leave blank space in the Grid, the last column should take the available space.
This functionality might be triggered by a setting a bool parameter to true.
I just want to provide a screenshot to make the current behavior more clear - when autofitting all columns, and the Grid is wider than the sum of all columns, the UI currently looks like this:
-> so the goal of this feature request is to stretch the last column in this case -> so that selection and alternate row UI looks "normal"