Code without docs is of not much use!

This task is part of the Google Summer Of Code work.

Acceptance criteria

• Transform the current docs tutorial entry here into a section tutorials/writing-policies/typescript, that matches other tutorial sections such as Rust, Go. Under that tutorial add the following pages:
  • Intro page:
    • like https://docs.kubewarden.io/tutorials/writing-policies/go/intro-go, explain the current state-of-the-art Wasm support for Typescript. This includes info about WASI (linking this other page), the README from the policy-sdk-js, and previous content of the intro page.
    • List limitations (using WASI, hence only stdin/stdout/stderr, logging through lib capabilities), prerequisites, explain briefly the javy-plugin.
  • Creating a validation policy from the js template policy (analogous to https://docs.kubewarden.io/tutorials/writing-policies/go/scaffold)
  • Defining policy settings
  • Validation log
  • End-to-end testing (with kwctl)
  • Logging
  • Github actions
  • Distributing policy
• See README.md for running it locally.
• The new content should be under docs/, not vesioned_docs/