Route crossing the date line W to E fails

[xristoz]

If a route crosses the date line east to west the rendering algorithm has an error where it draws the route going around the world - this is a edge case it is not handling the transition from 159 59W to 159 59E

Simple bug to fix but huge impact on Ux

[idefix37]

@xristoz
This is similar to
https://community.windy.com/topic/6411/the-bugs-found-around-180-e-w-degree-in-longitude?_=1599636673310