Because the number of buttons in the `ButtonBox` isn't dependent on the size of each button, sometimes the bar overflows on smaller screens. This should probably be redone to calculate the size of each button depending on its contents (which can be translatable). In the meantime, this fixes the overflow issue. task-3573807 closes odoo/odoo#141163 Related: odoo/enterprise#50256 Signed-off-by: Pierre Paridans (app) <app@odoo.com>