On March 19, voting will conclude in primary contests for hundreds of seats in the Illinois legislature and in the state’s court system. But most of those contests are uncompetitive.Statewide, 88 percent of judicial and state legislative primaries feature either a single candidate or no one running at all. This is the highest number of uncompetitive primaries for those seats in at least 20 years, according to a Capitol News Illinois analysis of data going back to 2004.The number of primaries with no candidates running at …