teacherInterface: fix static_asset path
teacherInterface: fix static_asset path

be-oi/beoi-contest-platform,France-ioi/bebras-platform,France-ioi/bebras-platform,France-ioi/bebras-platform,France-ioi/bebras-platform,be-oi/beoi-contest-platform,France-ioi/bebras-platform,France-ioi/bebras-platform,be-oi/beoi-contest-platform,be-oi/beoi-contest-platform,be-oi/beoi-contest-platform,be-oi/beoi-contest-platform