Add CodePair Lightweight Version

[krapie]

Description:

Add the CodePair Lightweight Version that excludes the GitHub login requirement and other features such as the workspace functionality. This streamlined version would be beneficial for users who prefer a more straightforward experience without the complexities associated with authentication and workspaces.

Additionally, a feature flag or toggle could be implemented to enable or disable this lightweight version, allowing users to choose their preferred interface based on their needs.

Why:

Offering a lightweight version would enhance accessibility for users who do not require full integration features, simplifying the user experience and allowing for quicker access to CodePair functionalities. This can broaden the user base and accommodate various use cases, especially in educational or demonstration settings where quick access is often prioritized.