Rerouting heavily relies on course

[boldtrn]

Currently, we assume a user is on route, if the course of travel matches the expected course, we completely ignore if the user is close to the route itself.

This happens in RouteController#userCourseIsOnRoute. We should probably use the same approach we are doing on Android as well and measure the distance to the route.

This is true for the snapping as well as offroute.