CSS Font-size 0 hides OL/UL/LI in Knowledgebase

[BrianVB]

Description
There is a rule for the font-size to be zero in knowledgebase.css (https://github.com/uvdesk/support-center-bundle/blob/master/Resources/public/css/knowledgebase.css#L2094) that hides the content of li tags

How to reproduce
Either on a fresh install of the skeleton. Or, create a demo, use the developer panel to edit the HTML directly and insert the proper list tags.

Possible Solution
Do not use font-size 0, or apply a font-size to list items or general elements so that it's not hidden.