Remove direct access to the topicController

Author: megothss

assets/javascripts/discourse/components/post/ai-persona-flair.gjs

@@ -1,17 +1,14 @@
 import Component from "@glimmer/component";
-import { inject as controller } from "@ember/controller";
 import { isGPTBot } from "../../lib/ai-bot-helper";
 
 export default class AiPersonaFlair extends Component {
   static shouldRender(args) {
     return isGPTBot(args.post.user);
   }
 
-  @controller("topic") topicController;
-
   <template>
     <span class="persona-flair">
-      {{this.topicController.model.ai_persona_name}}
+      {{@outletArgs.post.topic.ai_persona_name}}
     </span>
   </template>
 }