Quorum v0.5.2

What's Changed

• feat: fetch model metadata from models.dev instead of hardcoding by @alchaplinsky in #168
• [codex] Add agent model picker by @alchaplinsky in #169
• Remove dead Status bar toggle, wire up Token usage to composer meter by @alchaplinsky in #171
• refactor(css): remove dead CSS rules from app.css by @alchaplinsky in #170
• Version bump by @alchaplinsky in #172

Full Changelog: v0.5.1...v0.5.2