2.4.0

What's new

• contactFieldId now can be changed through Config
• added Swift Package Manager support
• added support for silent messages
• device related information now stored in keychain instead of userDefaults

What's fixed

• fixed DateFormatter to use Gregorian calendar every time
• fixed action button handling on rich push message
• fixed window handling when UIWindowScene is used
• fixed url creation when query parameters contains disallowed characters
• fixed storage of dictionaries