refactor(ml): migrate to TypeScript

[russellwheatley]

Description

Related issues

Release Summary

Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
  • Yes
• My change supports the following platforms;
  • Android
  • iOS
  • Other (macOS, web)
• My change includes tests;
  • e2e tests added or updated in packages/\*\*/e2e
  • jest tests added or updated in packages/\*\*/__tests__
• I have updated TypeScript types that are affected by my change.
• This is a breaking change;
  • Yes
  • No

Test Plan

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[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request refactors the ML package within the repository to use TypeScript for its source code. This change enhances type safety, improves maintainability, and aligns the package with modern development standards by utilizing react-native-builder-bob for the build process. The existing public API remains supported through deprecation markers to ensure backward compatibility for consumers.

Highlights

• TypeScript Migration: Converted the ML package source files from JavaScript to TypeScript to improve type safety and developer experience.
• Build Configuration: Updated package.json to utilize react-native-builder-bob for compilation and added a dedicated tsconfig.json for the ML package.
• API Deprecation: Marked the FirebaseMLTypes namespace as deprecated in favor of direct type exports, while maintaining backward compatibility.

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[gemini-code-assist]

Code Review

This pull request refactors the ML package to support modular APIs, updates namespaced types with deprecation notices, and integrates react-native-builder-bob for the build process. The getML function should be simplified to avoid redundant app lookups when an instance is already provided.