add recursive counter for links in replies

src/utils/countLinks.js

@@ -0,0 +1,20 @@
+function countLinks(comment) {
+  let linkCount = 0;
+
+  if (comment.replyCount > 0) {
+    for (let reply of comment.replies.pages.topAll.comments) {
+
+      if (reply.link) {
+        linkCount++;
+      }
+      
+      if (reply.replyCount > 0) {
+        linkCount += countLinks(reply);
+      }
+    }
+  }
+
+  return linkCount;
+}
+
+export default countLinks;