[프론트엔드] <NavBar> 지도 <Map> API 1

## ISSUE
- Group: `client`
- Type: `feature`
- Detail: ` 지도 기능 구현 (카카오 API 끌어오기)`

## TODO
- [ ] 지도 api 끌어오기
- [ ] 낚시 포인트 마커 생성 api 끌어오기

## Estimated time

### `3hs`

## Labels
Estimated time: E: `3hs`
Group : `client`
Sprint: `Sprint `
Urgency: `advanced`

No files or tests are named. Start in the client-side NavBar and Map feature entry points, then review the Kakao map API and the fishing-point marker API requirements. Done means the map loads from Kakao and fishing points appear as markers.

Written by the indexing model from the issue text.