Distance markers

[steventebrinke]

Enabling distance markers in the settings has two issues:

1. Distance markers are shown on all lines.

• For uploaded tracks, markers of the preview are indistinguishable from track markers and cannot be removed afterwards.
• When showing information on the map, such as road surfaces, the segments also add distance markers if the same color is added for more than 1 km.

2. Enabling or disabling distance markers only updates the first route.

• When the distance marker checkbox is changed, distance markers on the first route follow the setting. However, alternative routes don't change.

Proposed solutions:

1. Only show distance markers on routes, not on previews and informative colouring.
2. Toggle distance markers of all layers for which they are configured (i.e. a css class is set) when changing the setting.

[TheGreatRefrigerator]

Fix will be out with next release