Default `dodge_width = 0.8` causes unexpected shifts in line graphs

[jbengler]

The default dodge_width of 0.8 in the tidyplot() function leads to unexpected results in line graphs. Here, a dodge_width of 0 would be more appropriate.

Default behavior

Expected behavior

[jbengler]

One potential solution could be to implement a heuristic within tidyplot() that estimates the optimal dodge_width.

Pseudocode example:

if(is_discrete(x_axis_variable) || is_discrete(y_axis_variable)) {
   dodge_width = 0.8
} else {
   dodge_width = 0
}