Add functionality for jitter, dodge or repel to `plot_flux()`

[Hanne Oberman]

library(mice); library(ggmice); library(ggplot2)
plot_flux(boys) 

plot_flux(boys, label = FALSE)

plot_flux(boys, label = FALSE) + ggrepel::geom_label_repel(aes(label = vrb))
#> Warning: ggrepel: 2 unlabeled data points (too many overlaps). Consider
#> increasing max.overlaps

^{Created on 2024-06-06 with reprex v2.1.0}