style: apply convention

src/main/kotlin/uoslife/servermeeting/user/api/UserApi.kt

@@ -237,8 +237,13 @@ class UserApi(
                 )]
     )
     @GetMapping("/check/kakao-talk-id")
-    fun isDuplicatedKakaoTalkId(@RequestParam kakaoTalkId: String,@AuthenticationPrincipal userDetails: UserDetails,): ResponseEntity<Boolean> {
-        return ResponseEntity.ok(userService.isDuplicatedKakaoTalkId(userDetails.username.toLong(), kakaoTalkId))
+    fun isDuplicatedKakaoTalkId(
+        @RequestParam kakaoTalkId: String,
+        @AuthenticationPrincipal userDetails: UserDetails,
+    ): ResponseEntity<Boolean> {
+        return ResponseEntity.ok(
+            userService.isDuplicatedKakaoTalkId(userDetails.username.toLong(), kakaoTalkId)
+        )
     }
 
     @Operation(summary = "유저 미팅팀 별 기본 정보", description = "유저의 1:1, 3:3팀의 현재 상태를 요약합니다")

src/main/kotlin/uoslife/servermeeting/user/service/UserService.kt

@@ -81,7 +81,7 @@ class UserService(
 
     @Transactional
     fun updateUserPersonalInformation(command: UserCommand.UpdateUserPersonalInformation): User {
-        if(command.kakaoTalkId != null){
+        if (command.kakaoTalkId != null) {
             isDuplicatedKakaoTalkId(command.userId, command.kakaoTalkId)
         }
 
@@ -128,7 +128,8 @@ class UserService(
     fun isDuplicatedKakaoTalkId(userId: Long, kakaoTalkId: String): Boolean {
         val user = getUser(userId)
         if (kakaoTalkId != user.kakaoTalkId) {
-            if (userRepository.existsByKakaoTalkId(kakaoTalkId)) throw KakaoTalkIdDuplicationException()
+            if (userRepository.existsByKakaoTalkId(kakaoTalkId))
+                throw KakaoTalkIdDuplicationException()
         }
         return true
     }