Add React Aria 1.20 components and examples

[GregorGabric]

Summary

• add React Aria 1.20 TokenField and PreviewTrigger components with design-system styling and documentation
• add context-menu, keyboard-shortcut, and interactive-table examples, plus metadata-driven New badges
• consolidate React Aria/Stately monopackage imports and require React Aria Components 1.20 for the new registry items
• fix FileTrigger pending behavior and regenerate installable registry payloads

Verification

• pnpm --filter=preskok registry:build
• pnpm --filter=preskok typecheck
• targeted ESLint and Prettier checks
• git diff --check
• pnpm --filter=preskok build
• desktop, mobile, and dark-mode browser verification for the new component demos

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Project	Deployment	Actions	Updated (UTC)
ui	Ready	Preview	Jul 31, 2026 6:00pm