Write network to VOSviewer-compatible format.
Examples
# \donttest{
corpus <- sm_example_corpus()
net <- sm_network_cocitation(corpus)
sm_export_vosviewer(net, tempfile(fileext = ".tsv"))
#> Warning: Unknown or uninitialised column: `from`.
#> Warning: Unknown or uninitialised column: `to`.
#> ✔ Network exported for VOSviewer to /tmp/RtmpIQMgiF/file237049e0e8.tsv
# }