Marker on map misplaced

[Daniel Besse]

Marker on map is calculated as polyline_array[distance/tot_distance*polyline_length] But it is not correct as the polyline array does not have the same timepoints as the distance array...

[Daniel Besse]

Re-import all strava activities with stream `latlng`

[Daniel Besse]

• check write access before getting Strava token
• import latlng stream (see #36)

→ <<cset 464d5e66983e>>

[Daniel Besse]

use latlng stream if it exists to place marker more precisely (closes #36)

→ <<cset fbd7dc1d4c65>>