Create pull request / branch preview deploys

[tom-leamon]

There's a need to set up a system for previewing the work of contributors via pull request or branch preview deploys. This will enable a thorough review and testing of changes before they are merged into the main branch.

• Research and select a suitable tool or service for pull request/branch preview deploys.
• Integrate the chosen tool with the current CI/CD pipeline.
• Update the project's contribution guidelines to include steps for using this new system.
• Test the setup with a dummy pull request to ensure it works as expected.

This feature will enhance the review process by providing a live preview of changes, making it easier to catch issues early and improve the overall quality of contributions.