Updated package dependencies to the latest versions.

Upgraded dependent packages to latest versions.

quick fix up in markdown.

updated ReleaseNotes.md

Updated build scripts to use .net10

Update package dependencies to latest versions.

Updated library projects to support .net9 & 10.

Update readme and release notes.

Upgraded to latest Spectre.Console version and fixed up some breaking changes in the Testing namespace and Command.Execute now requiring CancellationToken.

Updated release notes.

modernized the code for all samples.

modernized the Testing classes.

modernized code for Controls.

modernized code for basic appbuilder, commands, services, and settings classes.

modernize code in extensions containers project.