After validating/canceling a participation, the selected ligne does not dissapear
Current issue : from the list of pending participation, when you select a ligne and clic "validate", the line does not disappear. (You need to reload the web page manually).
Fix : the validated line should disappear because it is not longer pending. Refresh the list after clicking on either buttons.
[fr] après clic sur le bouton de validation d'une demande de participation, la ligne du candidat reste à l'écran (c.à.d. dans la liste des demandes à valider) (il faut rafraîchir manuellement la page).