[Feature request] Neighbourhood highlight on node clicking

[forkrul]

This might be interesting to get brief overviews of connected nodes on the main view: "once a node is clicked all nodes are greyed out except for first and second order connected nodes"

https://visjs.github.io/vis-network/examples/network/exampleApplications/neighbourhoodHighlight.html

[goktug97]

I thought about adding this but buffer view already establishes this so I am not going to add this

Also I don’t want to add another computation to the click which opens the note in the emacs