docs: enhance routing documentation with comprehensive HTTP methods and examples

[Amirmahdikahdouii]

Summary

Enhanced the Echo routing documentation with comprehensive improvements to make it more complete and user-friendly.

Changes Made

• ✅ Added comprehensive HTTP methods section with all available methods (GET, POST, PUT, DELETE, PATCH, HEAD, OPTIONS)
• ✅ Enhanced handler function signature explanations with detailed echo.Context information
• ✅ Improved Echo.Any() and Echo.Match() method documentation with examples
• ✅ Added detailed route parameters section (path, query, form parameters)
• ✅ Enhanced route naming and URI building with practical examples
• ✅ Added comprehensive group middleware examples and best practices
• ✅ Fixed all linting errors and improved code formatting

Benefits

• Developers now have clear guidance on all HTTP methods and their signatures
• Better understanding of parameter handling (path, query, form)
• Comprehensive examples for route naming and URI generation
• Detailed group management with middleware examples
• Improved documentation quality with consistent formatting

Files Changed

• website/docs/guide/routing.md - Enhanced with comprehensive routing documentation