Refresh Samples

[Adam-it]

Idea

The aim of every sample is to increase adoption and make it simple.
Current samples in the repo are outdated. They use old version of PnP Core and old (usually deprecated) version of .NET.

Describe the solution you'd like

The aim would be to refresh the samples by providing the following updates:

• Since many samples use old versions of .NET (3.1, 6, 7) it would be good to add RollForward property to the project so that they may be started on newer versions of .NET Runtime
• As a follow-up to the above, I would also update the version of .NET to the latest LTS version
• Update the version of PnP Core to the latest
• [optional] Most of the samples favor using Visual Studio, which is ok, but to increase adoption, I would add support to easily run the project in VS Code like: add launch.json, add tasks.json, update readme guidance

Plan

I don't have experience if all of the provided samples but I may udpate the following:

• WPF Sample
• Console Sample
• Minimal getting started sample -> Updates console minimal sample. Related #1714 #1713
• Blazor Sample
• ASP.NET Core Sample

Additional context

If possible I am willing to work on this issue