0.12.0

What's Changed

• refactor: split doc and viewport state by @molecule-man in #78
• refactor: zoom aware render cache by @molecule-man in #79
• refactor: extract document workspac by @molecule-man in #80
• feat: Introduce split-view feature by @molecule-man in #81
• perf: reduce memory consumption by sharing display lists between threads by @molecule-man in #82
• feat(ui): close tab on middle-click by @molecule-man in #83

Full Changelog: 0.11.5...0.12.0