Quorum v0.4.0

What's Changed

• Redesign sidebar agent rows by @alchaplinsky in #140
• feat: redesign git panel with color-coded states and linked copy by @alchaplinsky in #141
• Agent-delegated git actions + real PR check states in the git panel by @alchaplinsky in #142
• ci: auto-generate release notes when publishing by @alchaplinsky in #143
• chore: bump version to 0.4.0 by @alchaplinsky in #144

Full Changelog: v0.3.3...v0.4.0