Add route overview #23
Description
Turn-by-turn navigation was added in 2afec75, but this only gives the next instruction while traveling without the ability to look at all navigation instructions. This also is only available for routes started with a GPS origin.
To allow navigation with routes that aren't actively updated through GPS, it would be nice to have a separate UI view that just shows the current route's instructions.
This could either be a separate button, which would unfortunately block more of the map view, or while a route is active the search button could be changed to this view and the "cancel route"/"pedestrian/car toggle" could be displayed in this view instead.