[gestures page] scale of map, shard with the journey, ...

• maybe the scale of the map should be adapted because it is not always easy to understand the surroundings of the point
• style of the map? what do we understand, how can it be made more clear?
• have a shard with the gesture's journey within the shards
• more than one journey per gesture?
• or have additional journeys (something similar to markers but that we do not have yet)
• define other proximities for gestures'maps (for now geographical, but could we make other relations?)