Fix Image src prop support

[huytdps13400]

Summary

• add the React Native Image src prop to the public Flow type
• normalize src into the existing source pipeline without forwarding it to the root View
• preserve the native contract that src takes precedence over source

Fixes #2849.

Root cause

Image only destructured and resolved source. The src prop therefore fell through to the root View, while image loading, caching, dimensions, background rendering, and the hidden accessibility image all continued to read source.

The component now selects one effective source up front (src when non-null, otherwise source) and leaves the existing loading/rendering pipeline unchanged.

Verification

• Observed the focused regression fail before the implementation: expected src.png, received source.png.
• Focused Image suite: 35 tests and 27 snapshots passed.
• npm run test:
  • Flow: no errors
  • Prettier and ESLint: passed
  • DOM: 46 suites, 714 passed / 6 skipped, 213 snapshots
  • Node: 3 suites, 6 tests, 7 snapshots
• npm run build -w react-native-web — ESM, CommonJS, and Flow outputs built successfully.
• Chromium CDP runtime check on a local Next.js page:
  • src-only rendered the src URI
  • src + source rendered the src URI
  • console registry contained 0 errors and 0 warnings
• git diff --check

Tested with the repository CI runtime, Node 16.20.1 / npm 8.19.4.

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