Docs: Help indexability by removing accordions (SEO)

[jonaseberle]

André, Mathias Bolt Lesniak and me found the content on the docs FAQ page not ranking well and had the idea it might be because of the accordion.

It could have other causes (not enough "link juice" yet etc.), but we think it would be a good idea to avoid accordions for valuable content anyways.

This search query should bring up the page that explains it best (the FAQ page):

https://www.google.com/search?q=is+content+blocks+in+typo3+core%253F

But only by "nudging" it towards the FAQ page it shows up:

https://www.google.com/search?q=is+content+blocks+in+typo3+core%253F+faq