fix HN user blocking on threads page

bubble-server/src/main/resources/bubble/rule/social/block/site/HackerNews.js.hbs

@@ -1,8 +1,12 @@
 function {{JS_PREFIX}}_apply_blocks(blocked_users) {
-    const commentTable = document.querySelector('table.comment-tree');
+    let commentTable = document.querySelector('table.comment-tree');
     if (commentTable === null) {
-        console.warn('commentTable not found, not filtering');
-        return;
+        console.warn('commentTable not found, looking for hnmain table');
+        const commentTable = document.querySelectorAll('#hnmain tbody');
+        if (commentTable === null) {
+            console.warn('commentTable not found and hnmain table not found, not filtering');
+            return;
+        }
     }
     const comments = commentTable.querySelectorAll('tr');
     if (comments === null || comments.length === 0) {