v0.16.1

• fix walkthrough anchor spans and resolve them against the code on screen
• lead the readme's agent setup with the port-discovering proxy
• tighten the readme and restore the install dropdowns
• rewrite the readme around diffler as a standalone magit
• chore(deps): bump the deps group across 1 directory with 3 updates (#53)
• chore(deps): bump astral-sh/setup-uv from 10.0.1 to 10.2.0 (#51)
• reword the msrv lint comment
• allow clippy's new assert_is_empty lint
• show changed images as pictures in the diff pane

Full changelog: v0.16.0...v0.16.1