未読の通知がある場合アイコンを表示するように

src/api/stream/home.ts

@@ -4,6 +4,7 @@ import * as debug from 'debug';
 
 import User from '../models/user';
 import serializePost from '../serializers/post';
+import readNotification from '../common/read-notification';
 
 const log = debug('misskey');
 
@@ -45,6 +46,11 @@ export default function homeStream(request: websocket.request, connection: webso
 				});
 				break;
 
+			case 'read_notification':
+				if (!msg.id) return;
+				readNotification(user._id, msg.id);
+				break;
+
 			case 'capture':
 				if (!msg.id) return;
 				const postId = msg.id;