Always show inline diff when there are only either additions or deletion
Release notes
Use more screen space by showing diffs in inline view when there are only either additions or deletion, regardless of the chosen view.
Problem to solve
When side-by-side diff is selected, a lot of space is wasted when viewing a file that only has additions (or only deletions).
Proposal
For file diffs that only have additions (or only deletions), always show the diff in inline view. It is functionally the same anyways, but has twice as much space.