fix(banner): 캐릭터 검색

- 검색 결과에 imageHost와 imagePath 사이에 / 추가

src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/character/dto/ChatCharacterSearchResponse.kt

@@ -22,7 +22,7 @@ data class ChatCharacterSearchResponse(
                 name = character.name,
                 description = character.description,
                 mbti = character.mbti,
-                imagePath = character.imagePath?.let { "$imageHost$it" },
+                imagePath = character.imagePath?.let { "$imageHost/$it" },
                 tags = tags
             )
         }