show info when replies are limited in a thread

models.js

···
     return shouldHaveMoreReplies && (this.replies.length > 0 || (this.level !== undefined && this.level <= 4));
   }
 
+  /** @returns {boolean} */
+  get isRestrictingReplies() {
+    return !!(this.data.threadgate && this.data.threadgate.record.allow);
+  }
+
   /** @returns {number} */
   get repostCount() {
     return castToInt(this.data.repostCount);

post_component.js

···
       stats.append(quotesLink);
     }
 
+    if (this.context == 'thread' && this.post.isRestrictingReplies) {
+      let span = $tag('span', { html: `<i class="fa-solid fa-ban"></i> Limited replies` });
+      stats.append(span);
+    }
+
     return stats;
   }