Newelle 0.4.1

What's Changed

• Better instructions and added versioning for g4f by @FrancescoCaracciolo in #101
• Added user guides for LLMs and extensions by @FrancescoCaracciolo
• Improved extension browsing to show only Python files by @FrancescoCaracciolo
• Enhanced automatic model handling for OpenAI handlers by @FrancescoCaracciolo
• Minor stability and performance improvements by @FrancescoCaracciolo

Full Changelog: 0.4.0...0.4.1