Add the information to the ACP Status Message box that the Rebuild Data must be performed for notes.

Author: Cyperghost

wcfsetup/install/files/lib/system/acp/dashboard/box/StatusMessageAcpDashboardBox.class.php

@@ -283,9 +283,13 @@ private function getMigrationMessage(): array
     {
         $event = new MigrationCollecting();
         EventHandler::getInstance()->fire($event);
+
         if ($this->userGroupAssignmentHasLegacyObjects()) {
             $event->migrationNeeded(WCF::getLanguage()->get('wcf.acp.group.assignment'));
         }
+        if ($this->noticeHasLegacyObjects()) {
+            $event->migrationNeeded(WCF::getLanguage()->get('wcf.acp.notice.list'));
+        }
 
         if ($event->needsMigration() === []) {
             return [];
@@ -311,4 +315,15 @@ private function userGroupAssignmentHasLegacyObjects(): bool
 
         return $statement->fetchColumn() > 0;
     }
+
+    private function noticeHasLegacyObjects(): bool
+    {
+        $sql = "SELECT COUNT(*) AS count
+                FROM   wcf1_notice
+                WHERE  isLegacy = ?";
+        $statement = WCF::getDB()->prepare($sql);
+        $statement->execute([1]);
+
+        return $statement->fetchColumn() > 0;
+    }
 }