Implement ticket panel synchronization and configuration updates

- Added `panelChannelId` and `panelMessageId` fields to the `TicketConfig` model for managing ticket panel settings.
- Introduced `syncTicketPanel` function to handle posting and updating the ticket panel in Discord channels via BullMQ.
- Enhanced error handling for ticket panel synchronization, including specific error messages for missing categories and posting failures.
- Updated WebUI components to support panel channel selection and improved error messaging for synchronization issues.
- Added localization entries for new error messages related to ticket panel synchronization in both English and German.
- Refactored ticket category management to trigger panel synchronization upon category creation, update, or deletion.

apps/bot/src/modules/tickets/index.ts

@@ -1,4 +1,9 @@
 export { ticketsCommands } from './commands.js';
 export { isTicketInteraction, handleTicketInteraction } from './interactions.js';
-export { closeInactiveTickets, checkInactiveTickets } from './service.js';
+export {
+  closeInactiveTickets,
+  checkInactiveTickets,
+  runTicketPanelSyncJob,
+  TicketPanelError
+} from './service.js';
 export { registerTicketEvents } from './events.js';