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.component.html

@@ -13,7 +13,7 @@
         </mat-form-field>
       </div>
       <div fxLayout="row" fxLayout.lt-md="column" fxLayoutGap="20px" fxLayoutGap.lt-md="0px">
-        Total Service Charge: <strong>{{voucher.incentive | number:'1.2-2'}}</strong>
+        Total Incentive: <strong>{{voucher.incentive | number:'1.2-2'}}</strong>
         Total Points: <strong>{{totalPoints() | number:'1.2-2'}}</strong>
         Point Value: <strong>{{pointValue() | number:'1.2-2'}}</strong>
       </div>