Transition to C# Dev Kit

[Arlodotexe]

Background

Microsoft has recently released a new extension for Visual Studio Code called C# Dev Kit. This extension, which automatically includes the C# extension currently marked as a required dependency in our devcontainer, provides a solution explorer and test window for VSCode.

Problem

This project is currently set up to recommend a third-party test explorer and solution. With the release of the C# Dev Kit by Microsoft, we have an opportunity to leverage this new extension to improve our development workflow.

Solution

The plan to solve this problem involves a few steps:

• Update the devcontainer configuration in this repository to include the C# Dev Kit as a required extension. This will ensure that it is automatically included when the repository is opened in a GitHub Codespace.
• Update our VSCode extension recommendations to remove the third-party VSCode solution explorer and add the C# Dev Kit as a recommendation for when the user opens the project locally.
• Implement the changes and ensure that the new setup functions as expected in both local and GitHub Codespace environments.