Fix label rendering and layout of turn arrows.
Fix label rendering and layout of turn arrows.

yuryleb/osrm-frontend,Project-OSRM/osrm-frontend,yuryleb/osrm-frontend,wheelroute/osrm-frontend-wheelchair-normal,sosm/osrm-frontend,yuryleb/osrm-frontend,wheelroute/osrm-frontend-wheelchair-electro,Project-OSRM/osrm-frontend,wheelroute/osrm-frontend-wheelchair-normal,wheelroute/osrm-frontend-wheelchair-electro,Project-OSRM/osrm-frontend-v2,sosm/osrm-frontend,sosm/osrm-frontend,Project-OSRM/osrm-frontend-v2,Project-OSRM/osrm-frontend