Feature/#276/qrcodes (#289)

* bugfix: wrong format when on 12h format

* update: website link in placeholder

---------

Co-authored-by: Fabian Posenau <fabian@fphome.de>
Co-authored-by: cv <34649812+cpvalente@users.noreply.github.com>

apps/client/src/common/models/EventData.type.ts

@@ -1,15 +1,17 @@
 export type EventDataType = {
   title: string;
-  url: string;
+  publicUrl: string;
   publicInfo: string;
+  backstageUrl: string;
   backstageInfo: string;
   endMessage: string;
-}
+};
 
 export const eventDataPlaceholder: EventDataType = {
   title: '',
-  url: '',
+  publicUrl: '',
   publicInfo: '',
+  backstageUrl: '',
   backstageInfo: '',
   endMessage: '',
 };