VIZ labels not fully visible in html boxplot

[mathurinm]

@Melvin-klein on e.g. the denoisers benchmark, the tilted labels for the methods are partially cropped (the bottom of the picture is the bottom of the page):

The html is available here : https://filesender.renater.fr/?s=download&token=494b15cd-cfcb-42b6-b26f-a58385df8135