Editora 0.9.10. Archived, so links from that release keep working. Read the 0.18.5 page →
Diff: Toggle Unified / Side-by-Side
diff.toggleView Switch the active diff between unified and side-by-side view.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for Diff: Toggle Unified / Side-by-Side, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.