The sample project references local files, how is meant to be used in stand alone extensions?

### Is your feature request related to a problem? Please describe.

The sample app doesn't work in the realworld. For example, what is the package name that we're supposed to install to be able to import? (so `import * as runtimeExtension from '@microsoft/vscode-dotnet-runtime';` doesn't error.)

From the comments we're meant to reference the external extension, but how does this string together. `npm search vscode-dotnet-runtime` returns nothing,.

Are we supposed to include the source into our extensions?

### A clear and concise description of what you want to happen. Include any alternative solutions you've considered.

A better sample application, which can run without referencing the source in the repository.

### Describe the solution you'd like

A proper, stand alone example using released libraries of how this is supposed to work.

### Additional context

_No response_