fix: avoid disabled accessibility state for active chips

[vivekjm]

Motivation

Fixes an accessibility regression where Chips without an explicit disabled prop can still be exposed as disabled/dimmed to screen readers. TouchableRipple marks itself disabled when no touch handler is present, so informational or selected Chips could inherit a disabled accessibility state even though the Chip itself is not disabled.

This keeps explicitly disabled Chips disabled, while allowing non-disabled Chips to remain active from an accessibility perspective.

Related issue

Fixes #4844

Test plan

• yarn test src/components/__tests__/Chip.test.tsx --runInBand -u
• yarn eslint src/components/Chip/Chip.tsx src/components/__tests__/Chip.test.tsx
• yarn typescript

Also attempted the default pre-commit hook, which runs full lint/types/tests. Lint and most tests ran, but the full Jest run failed in src/babel/__tests__/index.js because this checkout does not have lib/mappings.json generated.