Provides Single-HTML version of Guides

[vmoutoussamy]

Is your feature request related to a problem? Please describe.
Searching in Users and Administrator Guides for keyword (ctrl+f) is not easy with the existing HTML version due to the "multipart/multisection" layout. PDF Guides could be used but they have their "cons", it's heavier for the browser to load, "ctrl+f" is slower etc.

Describe the solution you'd like
Provide a Single-HTML version of Guides like we do with regular SUSE Documentation:
https://documentation.suse.com/sles/15-SP1/

Describe alternatives you've considered
IMHO I would consider to ditch the "multipart" version and only provide the Single-HTML version.

Additional context
I believe this could improve the UX, and I have to admit that I don't really get the "pros" of having a multipart documentation. Nowadays "endless scrolling" is really common on the internet/app world.