SPRINGFIELD — Nearly 400 state jobs — many of which former Gov. Rod Blagojevich moved to Chicago — will return to the capital city in coming years.Gov. Bruce Rauner signed House Bill 4295 Thursday in Springfield. The measure sets Sangamon County — with Springfield as its seat — as the default location for employees of most state jobs.The director of the Central Management Services must determine a geographic location for each state employment position, and if the job isn’t based in …