Wandb : find a way to handle seeds and to display stdev on plots

Currently, if we log an exp with multiple seeds, standard deviation cannot be displayed on the plots because standard deviation is not present in the table. It would be relevant to find a way to add standard deviation in the metrics table to display it on the plots. So far, the best approach I can imagine to do so is :

• log IRFs with girfs-log-wandb
• Group seeds referring to same experiments
• Download IRFs tables of this experiment
• Compute standard deviation and add the 2 columns in the table
• log it again
• edit vega4 custom charts in the reports to add the stdev as a new layout