New:Add avatar to message list contentEnable in-app notifications for betaIn-app error notification improvementsChanged:Default sync interval has been changed from 60 minutes to 15 minutesIntroduce warning in Message Compose screen when no sent folder is detectedAdd confirmation dialog for sending a message without a sent folderUse application icon in push notification messagesFixed:'Colorize contact pictures' default changed unexpectedly from true to falseDisplaying IMAP password in plain text did not prompt for authenticationSync debug logger did not write any logs