public EmailSettingsViewModel(ISettingsHandler settingsHandler)
{
_settingsHandler = settingsHandler ?? throw new ArgumentException("Parameter cannot be null", nameof(settingsHandler));
_emailFrom = settingsHandler.GetEmailFrom();
_emailFromAlias = settingsHandler.GetEmailFromAlias();
_emailTo = settingsHandler.GetEmailTo();
_emailFromPassword = settingsHandler.GetEmailFromPassword();
_emailSmtpEnableSsl = settingsHandler.GetEmailSmtpEnableSsl();
_emailSmtpHost = settingsHandler.GetEmailSmtpHost();
_emailSmtpPort = settingsHandler.GetEmailSmtpPort();
_emailSmtpUserName = settingsHandler.GetEmailSmtpUserName();
_isExpanded = settingsHandler.GetEmailIsExpanded();
}