improved antag pages and more role page references

This PR:

adds several links between pages, making it easier to get around.
fixes some types.
removes some really out of date references to old bugs in the cargo tech page.
adds the latest items and spells added to the wizard and syndicate items pages.
improves the visibility of the syndicate items and HRI page links in the traitor and nukie pages.

unitystation / unitystation-wiki