Add ability to filter submissions list by user name prefix
Should enable filtering users based on their name prefix, possibly searching for parts as well (LIKE %name_part%). Spans front- and backend.
SCHEDULED DOWNTIME: GitLab's virtual host must be rebooted to increase system resources. The reboot will occur on Wednesday, 2024-05-15, between 6:00 and 7:00 PM.
Should enable filtering users based on their name prefix, possibly searching for parts as well (LIKE %name_part%). Spans front- and backend.