Hi, hope you're good;

• Extension methods for the IHostEnvironment are defined in the HostEnvironmentEnvExtensions class.
  SEE: https://learn.microsoft.com/en-us/dotnet/api/microsoft.extensions.hosting.hostenvironmentenvextensions?view=net-9.0-pp (HostingEnvironmentExtensions contains extension methods for IHostingEnvironment which is an
  obsolete type.)

• Changes 'host builder context' to HostBuilderContext to help users to read and memorize better that the HostBuilderContext has the Configuration property.

Internal previews