For non-categorized lists, rather than always trying to find optimal
rows and columns, revert to prior behavior and only reflow if needed,
when the calculated rows are greater than maximum rows. This is less
disruptive, has less changes at small sizes where this doesn't matter.
Yet still does the job when things get too large to fit, or the list
is very long.
Pull Request: https://projects.blender.org/blender/blender/pulls/134713
b39bb42b3a