Highlight arrows for steady state events — arrow

Use inside in the networkCaPO4. Nothing is returned except that the network is updated via visNetworkProxy.

arrow_lighting(edges, simulation, counter, session)

Arguments

edges	A dataframe of edges provided by generate_edges.
simulation	Which disease is currently selected. See extract_running_sim.
counter	To determine which notification to display. We expect a counter returned by the networkCaPO4 module.
session	Session object.