v0.5.0

What's Changed

• feature: diffcat now opens on the branch's commit history by default; press D to jump to the aggregated branch-vs-base file tree and diff.
• ux: navigating the file tree with j/k now skips over folder rows and lands directly on files.
• ux: assorted layout and rendering polish across the diff and sidebar.

Full changelog: v0.4.1...v0.5.0