WEB-290: Introduce classification field on loan BuyDown Fee transaction (#2618)

Co-authored-by: Jose Alberto Hernandez <alberto@black-box.local>
Merging based on review from Adam and Rustam.

src/app/loans/loans-view/loan-account-actions/make-repayment/make-repayment.component.ts

@@ -104,7 +104,6 @@ export class MakeRepaymentComponent implements OnInit {
           Validators.min(0.001),
           Validators.max(this.dataObject.amount)])
       );
-      this.repaymentLoanForm.addControl('classificationId', new UntypedFormControl(''));
     } else {
       this.repaymentLoanForm.addControl(
         'transactionAmount',
@@ -113,6 +112,9 @@ export class MakeRepaymentComponent implements OnInit {
           Validators.min(0.001)])
       );
     }
+    if (this.isCapitalizedIncome() || this.isBuyDownFee()) {
+      this.repaymentLoanForm.addControl('classificationId', new UntypedFormControl(''));
+    }
   }
 
   setRepaymentLoanDetails() {