Improve SDK methods documentation in sdk-methods.mdx

The sdk-methods.mdx file provides an overview of the Reclaim SDK methods, but it could be enhanced to make it more user-friendly and comprehensive for developers.

Tasks:

1. For each method, add:
   • A clear, concise description of what the method does
   • Detailed parameter explanations, including types and whether they're optional
   • Return value description and type
   • At least two code snippets demonstrating usage in different contexts
   • Common errors or exceptions that might be thrown and how to handle them
2. Add a section on best practices for using these methods efficiently
3. Include cross-references to other relevant sections of the documentation
4. Add a troubleshooting section for common issues developers might encounter
5. Ensure consistent formatting and style throughout the document

This improvement will make it easier for developers to understand and correctly implement the SDK methods in their projects.

Contributors: Please note that by submitting a pull request, you are agreeing to accept and sign the Contributor License Agreement (CLA) found at https://github.com/reclaimprotocol/.github/blob/main/CLA.md

Open sdk-methods.mdx and inventory the documented SDK methods and their existing formatting. Add the requested descriptions, parameter and return details, usage examples, error guidance, best practices, cross-references, and troubleshooting content while keeping the style consistent. Done means every method has the requested coverage and all documentation links and examples are reviewed.