v6.4.1

🐛 Bugfixes 🐛

• Improve iOS error handling #654 - @pond 🎉
• Fix a potential iOS build error due to a generic variable name that can be easily found in other projects #697 - @rformato 🎄

📖 Documentation 📖

• Readme should mention that appAuthRedirectScheme must be lowercased for application be able to catch authorization redirect #659 - @Dergash 🥇