Ref T13546. Make "arc branches" use a flexible grid width and try to match the content to the display width in a reasonable way.
- Maniphest Tasks
- T13546: Modernize the "arc land" workflow
- rARC0ad3222d5966: Improve grid layout in "arc branches" at various terminal widths
Ran "arc branches" at various terminal widths, got generally sensible output.