0.17.0

Accessibility improvements and breaking changes to unstable APIs.

Breaking changes

• Remove special treatment of elements with accessibilityRole="menuitem". It no longer adds elements to the tab flow.
• Remove anchor element inference from View and Text with accessibilityRole="link". Only requires addition of href prop.
• Remove unstable_createElement element-type inference using href. Fixes use with svg elements.
• Remove unstable_createElement keyboard shim for onClick. It no longer invokes onClick during onKeyDown for keyboard interactions on elements that are not natively interactive.

Fixes

• Fix Pressable support for keyboard interactions if element is unmounted during interaction.
• Remove unnecessary CSS reset for input number spin buttons.
• Fix ProgressBar & Switch rendering in Windows High Contrast mode
• Text preserves white-space if numberOfLines={1}.