Frameshell 0.14.0

What's Changed

• feat: transitions and keyframes (v0.13, ADR 0018) by @ThomasPraun in #312
• docs: ADR 0019 proposal mode by @ThomasPraun in #314
• feat(core): propose 9:16 reframe keys from faces (#277) by @ThomasPraun in #313
• feat: review mode and proposals (v0.14, ADR 0019) by @ThomasPraun in #327
• chore(release): 0.14.0 by @ThomasPraun in #329

Full Changelog: v0.12.1...v0.14.0