iconGrid: Fix icon alignment
We don't want the icon to fill extra space, so set the alignment accordingly. Otherwise we get an unexpected result when adding a background just to the icon part (as far as I can tell: just system-action-icon).
We don't want the icon to fill extra space, so set the alignment accordingly. Otherwise we get an unexpected result when adding a background just to the icon part (as far as I can tell: just system-action-icon).