Add domain on creation of service

[WeAreCode045]

Instead of adding a domain and set it as default after a service has been added, it would be great if the domain can be set (with checkbox to set it as default) in the settings modal before creation (same modal where the service name is set)

reason: a lot of services use the domain set by easypanel (https://xxx.xxx.easypanel.host) during setup. When adding a own domain for the service and set this as primair when the service already has been created, often database values containing the easypanel domain are not updated with the new domain. If the additional domain could be added and set as primair before starting the service creation this could avoid those issues