Is your feature request related to a problem? Please describe.
at the moment: cstate/hugo only creates pages for systems, which are currently affected by an incident.
clicking on a system's name (without incidents) on the index page forwards to the 404.html-page, with is showing a vague message like "doc not found OR no incident recorded OR url maybe wrong" (it's not the fault of the 404-page: he/she/it can't know for sure)
It would be more user-friendly, if more precise information could be displayed.

Describe the solution you'd like
rendering/creating page for all systems would be a solution for this problem.
_default/lists.html seems to be already prepared for this usecase: Lines 59ff formulate an if-clause to include the calmBeforeTheStorm-message. (however, as the pages for systems currently will only be rendered, if there are incidents, the calmBeforeTheStorm is never displayed) :(

Describe alternatives you've considered
i tried to create inndividual pages per system in a folder content/affected/. this kind of works. however, this would be some form of duplicate data storage, as the systems names are already defined in config.yml. (Furthermore, I wasn't able to display die incidents/issues belonging to the system on it's content/affected/-Page. -- if fixable, this might be an alternativ, though)