review clicking on 'empty' area in the map
https://pdmap.uni.lu/ clicking in, for example, the area marked on below image causes that random pathways like: `FOXO3, TFEB activity, ER stress signaling` are marked with pin. What is not expected as they are not in close neighbourhood of point of click. ![Screenshot_2021-11-22_at_17.32.37](/uploads/150e9c4ab1b2486bb9ad9408fbca4c2d/Screenshot_2021-11-22_at_17.32.37.png)
issue