The DOM is cluttered with a lot of nav item UL-s that are not visible to the end user due to the usage of multiple docs-navigation-list instances that render the full navigation tree recursively instead of only the preselected visible levels.
PR Close#58934
To increase the ease of development we are moving @angular/docs into the adev directory within this repo. While
we are doing this to improve our development experience in the short term, efforts are also in place
to maintain a division between this @angular/docs (shared) code and adev itself, so that it can be extracted
back out in the future when components is ready to leverage it as well.
PR Close#57132
