[task] 회원탈퇴 (component) - method: delete

### ISSUE
- Group: `client`
-Type: `feature`
-Detail: sign out component method: delete

### TODO
1. [ ] db에 같은 id를 가진 회원의 정보 삭제 요청
2. [ ] 본인이 속한 모임에서 자동 나가기 처리
3. [ ] 홈화면(비로그인)으로 이동

### Estimated time
>Pick one

### `2h`

Start by locating the client sign-out component and its delete method. Trace the database request for the member ID, the automatic exit from the member's groups, and navigation to the logged-out home screen. Done means all three TODO items work together when a member deletes their account.

Written by the indexing model from the issue text.