Implement basic tests for forms using the sandbox.

Use Cypress to process server-side navigations.

Remove unnecessary dependencies, ensure everything is working (script and noscript).

Use filesystem-based cache to get response details instead of using the cookies (only use cookies for getting the request ID [FIXME]).

Test implementation on both client-side and server-side.

Allow handler to check for original method.

Extract client components and organize code base.

We also add tests for the form component.

De/serialize response using seroval for cookies.

Add files from pridepack and create-next-app.