changed paramsearch comparison plot to show gain instead of loss
new paramsearch results visualization

* split it into plots for both directions
* this performance gain plot I have now is much more intuitive to read. 
* the previous plot was even wrong or at least did not make much sense
finally decision made for the parameter comparison plot
remove descriptor performance comparison

this plot moved to the predictions plot
rotate labels in the violin plot
remove unnecessary space in the violin plot
add legend to descriptor comparison plot
finish descriptor comparison plot

* uppercase descriptor names
* uppercase method name
* more readable ytickmarks
* change method comparison ticks and add legend
make predictions plot nicer