Investigate a better force layout for detecting overlaps #61
Description
Especially now that edge text is displayed, it can happen that nodes will lay on top of the edge, blocking out some of the text.
Investigate if cola.js could be used to achieve a better layout.
Specifically the force layout with features such as route edges to avoid intersections with node boundaries.
Another feature that could be useful, though probably would go in a separate issue if we choose to implement it is power graph.