[TASK] Sprint2_FE_메인 페이지_점보트론 포스터 조회수순, 임박예정순, 등록일순 정렬 기능

### ISSUE
- Group: `client`
- Type: `feature`

### TODO
1. [ ] 점보트론 포스터 조회수순 정렬 기능 구현
2. [ ] 점보트론 포스터 임박예정순 정렬 기능 구현
3. [ ] 점보트론 포스터 등록일순 정렬 기능 구현

### Estimated time

### `3h`

### Labels
- Estimated time: `E: 3h`
- Group : `client`
- Sprint: `Sprint2_Bare Minimum`
- Urgency: `Low`

Start by locating the TypeScript client entry point for the main-page jumbotron poster list and inspect how the posters are currently displayed. Add the three requested ordering options—view count, upcoming deadline, and registration date—and verify that each produces the expected order on the main page.

Written by the indexing model from the issue text.