fix #430 - 1. Reward 달성 시에 content 수정 2. 얻은 연필 목록에서 buildingName 같이 넘기도록 수정

[essaysir]

작업내용

1. Reward 달성 시에 content 수정

	private AcquiredPencil createAcquiredPencil(Long sharedNoteId, Member seller, Long price, AcquiredType type) {
		String content = "노트 공유 완료!";
		return AcquiredPencil.create(seller, content, sharedNoteId, price, false, type);
	}

2. 얻은 연필목록에서 buildingName 넘기도록 수정

	@Query("SELECT new umc.th.juinjang.api.pencil.service.response.AcquiredPencilResponse(" +
		"ap.id, ap.content, ap.sharedNoteId, ap.acquiredQuantity, " +
		"ap.isRead, ap.type, ap.createdAt, sn.buildingName) " +
		"FROM AcquiredPencil ap " +
		"LEFT JOIN SharedNote sn ON ap.sharedNoteId = sn.sharedNoteId " +
		"WHERE ap.member = :member " +
		"ORDER BY ap.createdAt DESC")
	List<AcquiredPencilResponse> findAllByMemberWithBuildingNameOrderByCreatedAtDesc(@Param("member") Member member);