0. FM & HDRO nomination list page function enhancement

-paging (default 20 items per page)
-sort (by date/PS name/candidate name/status)
-search (by thesis title/PS name/candidate name)
1. UI enhancement:
-Candidate detail: other supervisor(s): no bullet point
-Examiner detail:  attachment: if no attachment, table head (name/size) not show
-operation: pending on exact level with description