docs: fix typescript guidelines & add explicit prettier config

[aaronstrachardt]

Overview

This PR addresses an inconsistency between the documented TypeScript guidelines and the actual codebase style. It updates the CONTRIBUTING.md to reflect the projects use of 2-space indentation and adds a .prettierrc config file to enforce these rules, preventing confusion for new contributors.

Changes

1. Updated CONTRIBUTING.md:

• Removed the link to the Microsoft TypeScript Coding Guidelines which incorrectly says that you should use 4 space indentation and forbids the use of classes

2. Added .prettierrc:

• Created a config file with 2-space indentation, no trailing commas, etc. that try to match the existing code style

Checklist

• Code follows project standards.
• Self-reviewed and commented where needed.
• Documentation updated if needed.
• No new warnings or errors.