Replace cost unit endpoints for staff member

• cost unit changes are made by patch staff
• so no separate cost unit endpoints anymore

apps/frontend/src/app/staff-list/main-data/components/staff-member-insurance.component.ts

@@ -25,12 +25,12 @@ import { getPropertyLabel } from "@lib/properties";
           <span *ngIf="staffDataTyped.numberOfChildren">; {{staffDataTyped.numberOfChildren}} {{staffDataTyped.numberOfChildren > 1 ? 'Kinder': 'Kind'}}</span>
           <span *ngIf="staffDataTyped.noChildrenCharge">; {{getPropertyLabel('noChildrenCharge')}}: JA</span></td>
       </tr>
-      <tr><td>Versicherungsschlüssel</td><td>
-        {{staffDataTyped.insuranceCareKey || '0'}} / {{staffDataTyped.insuranceHealthKey || '0'}} / {{staffDataTyped.insurancePensionKey || '0'}} / {{staffDataTyped.insuranceUnemploymentKey || '0'}}
+      <tr><td>Beitragsgruppenschlüssel</td><td>
+        {{staffDataTyped.insuranceCareKey || '-'}} / {{staffDataTyped.insuranceHealthKey || '-'}} / {{staffDataTyped.insurancePensionKey || '-'}} / {{staffDataTyped.insuranceUnemploymentKey || '-'}}
         <span [style.opacity]="'0.5'">({{getPropertyLabel('insuranceCareKey')}} / {{getPropertyLabel('insuranceHealthKey')}} / {{getPropertyLabel('insurancePensionKey')}} / {{getPropertyLabel('insuranceUnemploymentKey')}})</span>
       </td></tr>
 
-      <tr *ngIf="staffDataTyped.transferring"><td>{{getPropertyLabel('transferring')}}</td><td>{{staffDataTyped.transferring}}</td></tr>
+      <tr *ngIf="!!staffDataTyped.transferring"><td>{{getPropertyLabel('transferring')}}</td><td>{{staffDataTyped.transferring ? 'JA' : 'NEIN'}}</td></tr>
       <tr *ngIf="staffDataTyped.insuranceHealthCompany"><td>{{getPropertyLabel('insuranceHealthCompany')}}</td><td>{{staffDataTyped.insuranceHealthCompany}}</td></tr>
       <tr *ngIf="staffDataTyped.insurancePensionNumber"><td>{{getPropertyLabel('insurancePensionNumber')}}</td><td>{{staffDataTyped.insurancePensionNumber}}</td></tr>
       <tr *ngIf="!!staffDataTyped.insurancePensionCapital"><td>{{getPropertyLabel('insurancePensionCapital')}}</td><td>{{staffDataTyped.insurancePensionCapital ? 'JA' : 'NEIN'}}</td></tr>