Navigation/QoL changes

Navigation always has been fairly complicated so to make the game more approachable all the movement is now done with one button instead of continous clicking. It really simplifies the experience in a good way, plus picking a way forward is no presented in a new selection screen listing out everything that's going be in a chosen path.

Some of the new models i'm working on are added in the game as placeholdery shapes but they make the city easier to look at