Sharing renderer context with envs and test

Compositions, also known as component previews, are renderings of a component in various variations and often require a common context such as a theme provider, router, or auth provider. To streamline the process, a common render context can be created for both compositions and unit tests, facilitating their integration and reducing redundancy. This can be achieved by creating a React Context component and adding it as a wrapper to the environment mounter preview and the react-testing-library render function for unit tests. To further simplify the process and avoid repetitive code, a custom testing library can be developed by extending the react-testing-library function to automatically include the render context component as a wrapper. This approach enhances the ease of implementing and maintaining consistent testing and preview setups across projects.