Renamed Service Charges to Incentives including account fixture and permission

replaced my custom ValidationErro with FastAPI HTTPException
Fixed?:
 Attendance
 Employee Attendance

overlord/src/app/incentive/incentive-resolver.service.ts

@@ -16,7 +16,7 @@ export class IncentiveResolver implements Resolve<Voucher> {
   resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<Voucher> {
     const id = route.paramMap.get('id');
     if (id === null) {
-      return this.ser.getOfType('Service Charge');
+      return this.ser.getOfType('Incentive');
     } else {
       return this.ser.get(id);
     }