Sort students by last name in the Homeboard schedule attendance panel

When teachers take attendance from the Homeboard schedule view (the panel that opens when clicking a class), students are always listed alphabetically by first name. There is no option to change this to last name.

Most schools organise their class lists, paper rolls, and reports by surname. Having the attendance panel sort by first name forces teachers to work against that convention every single roll call, which slows them down and increases the risk of marking the wrong student.

The fix would be to either respect the existing Homeboard sort setting (which already supports last name), or add a dedicated sort option to the schedule attendance panel itself.