UX problems with routes

[dabreegster]

The way we draw currently, you can't see the basemap underneath drawn routes. So the road names aren't visible! https://maplibre.org/maplibre-gl-js-docs/example/geojson-layer-in-stack/ could help.

And when two separate routes meet at a point, the boundary between them is unknowable until you click one and see waypoints:

[dabreegster]

For the second, maybe just adding circular end caps with a faint outline would help. I tried in Felt and geojson.io, and both have the same problem right now

[dabreegster]

Both issues fixed. We still saw some people in the UX study get confused after successfully using the split route tool; the circle outline wasn't clear enough. But in lieu of better design ideas, marking done for v2