Defaults key name issue

[odrobnik]

Here are some runtime errors (purple in Xcode)

/Users/oliver/Developer/Others/steipete/CodeLooper/Features/Monitoring/Domain/Models/MonitoredInstanceInfo.swift:105 The key name must be ASCII, not start with @, and cannot contain a dot (.).

/Users/oliver/Developer/Others/steipete/CodeLooper/Features/Monitoring/Domain/Models/MonitoredInstanceInfo.swift:106 The key name must be ASCII, not start with @, and cannot contain a dot (.).

/Users/oliver/Developer/Others/steipete/CodeLooper/Features/Monitoring/Domain/Models/MonitoredInstanceInfo.swift:120 The key name must be ASCII, not start with @, and cannot contain a dot (.).

/Users/oliver/Developer/Others/steipete/CodeLooper/Features/Monitoring/Domain/Models/MonitoredInstanceInfo.swift:121 The key name must be ASCII, not start with @, and cannot contain a dot (.).