Extend e2e api docs tests to test all pages

[sean1588]

Add tests to include all the pages similar to the current e2e tests we run, but instead of using cypress, validate the elements exist in the dom in the correct order and structure using a library like jsdom or node-html-parser since they are much faster and would enable us to verify this across all the pages. This will give us much higher confidence our pages are rendering correctly across all api docs pages.