v1.2.0

What's Changed

• Add rapid UI dev deploy workflow (Makefile + build:fast) by @jsheffie in #43
• Fit view after layout completes on initial page load by @jsheffie in #45
• Use actual rendered node sizes in layout engines; add toolbar spacing slider by @jsheffie in #47
• Redesign left sidebar: full app names, icon toolbar, double-click to hide (v1.2.0) by @jsheffie in #49

Full Changelog: v1.1.0...v1.2.0