types import error fixed

frontend/src/queries/comments.ts

@@ -13,7 +13,7 @@ export function useCreateComment() {
   
   return useMutation({
     mutationFn: api.createComment,
-    onSuccess: (data, variables) => {
+    onSuccess: (_data, variables) => {
       queryClient.invalidateQueries({ 
         queryKey: ['comments', { articleId: variables.articleId }] 
       });