Rework logic to know who is the first visible results view
We have a horizontal layout of runner results that separate the results by category.
In order to show enough space for the text field and to disable the first separator line, it assumed the item with index===0 was the first element.
However if there aren't results which are applications, this assumption would break and the layout was wrong, so check that this column is actually the first visible child.
BUG: 482736 FIXED-IN: 6.0.2
(cherry picked from commit e0582b16)
f5237fb8 Rework logic to know who is the first visible results view db6d7462 fix resizing