Fix #19 Ansprechpartner nicht auswählbar

frontend/pages/createDocument/edit/[[id]].vue

@@ -1824,7 +1824,7 @@ const setRowData = async (row, service = {sellingPriceComposed: {}}, product = {
               >
                 <InputGroup>
                   <USelectMenu
-                      :options="contacts.filter(i => i.customer === itemInfo.customer)"
+                      :options="contacts.filter(i => i.customer?.id === itemInfo.customer)"
                       option-attribute="fullName"
                       value-attribute="id"
                       :search-attributes="['name']"