PR contains the following:
1) New video embeds for the following docs:
- website/docs/reference/deploy/environment-import-export.mdx
- website/docs/reference/playground.mdx
- website/docs/reference/strategy-constraints.md
- website/docs/topics/a-b-testing.md
2) Improvements to the Academy course playlist embedding for the three
Academy courses. Tested the standard method of embedding video, and it
seems this works well for playlists too.
Switching to the native Docusaurus embed solves the issue with dynamic
resizing. Rather than a static embed size the video will now scale to
the browser window size.
