feat(react): redesign quick actions

[wangdicoder]

Summary

• redesign QuickActions with a new product-grade API, richer action content, and updated docs demos
• improve hover, click, keyboard, and close behavior, including action persistence controls and accessibility updates
• add a major changeset for @tiny-design/react covering the QuickActions upgrade

Release

• major
• affected packages: @tiny-design/react

Test plan

• pnpm --filter @tiny-design/react test -- quick-actions