fix: FAQ 상세 조회 Ajax Content-Type 추가

src/main/webapp/WEB-INF/views/sopmal/csc/CscListRForm.jsp

@@ -280,6 +280,7 @@
         const bbsId = $("#bbsId").val();
         $.ajax({
             type: "post",
+            contentType: "application/json",
             data: JSON.stringify({
                 bbscttInnb: bbscttInnb
                 ,bbsId: bbsId
@@ -448,4 +449,4 @@
         <a href="#" rel="modal:close" class="alert-btn"><spring:message code="button.no"/></a>
     </div>
 </div>
-</html>
+</html>