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-basic.component.ts

@@ -18,9 +18,7 @@ import { StaffMemberFullDto } from '@lib/dto';
         <td>{{staffDataTyped.address.replace('\\n', '; ')}}</td>
       </tr>
       <tr *ngIf="staffDataTyped.citizenship || staffDataTyped.residencePermit"><td>Staatsangehörigkeit</td>
-        <td fxLayout="row" fxLayoutAlign="space-between center" fxLayoutGap="6px">
-          <div>{{staffDataTyped.citizenship}}</div>
-          <div *ngIf="staffDataTyped.residencePermit">Aufenth. erteilt</div></td>
+        <td>{{staffDataTyped.citizenship}}{{staffDataTyped.residencePermit ? ' - Aufenthaltsgenehmigung erteilt.' : ''}}</td>
       </tr>
       <tr *ngIf="staffDataTyped.qualification"><td>Qualifikation</td>
         <td>{{'staff-data.qualification.' + staffDataTyped.qualification | translate}}