v0.3.0

What's Changed

• rewrite: the v0.3 architecture (work in progress) by @rhczz in #5
• refactor: renderers move to the shell, the checkout layout is the product's, and i18n is gone by @rhczz in #6
• test: harden the suite the third review round found by @rhczz in #7
• refactor: the subtraction sweep by @rhczz in #8
• fix: release-readiness leftovers from the review by @rhczz in #9

Full Changelog: v0.2.5...v0.3.0