fix: sync contacts balance with journal entries.

fix: edit invoice amount that has payment transactions.

server/src/models/Vendor.js

@@ -40,7 +40,7 @@ export default class Vendor extends TenantModel {
    * Defined virtual attributes.
    */
   static get virtualAttributes() {
-    return ['closingBalance'];
+    return ['closingBalance', 'contactNormal'];
   }
 
   /**
@@ -50,6 +50,13 @@ export default class Vendor extends TenantModel {
     return this.openingBalance + this.balance;
   }
 
+  /**
+   * Retrieve the contact noraml;
+   */
+  get contactNormal() {
+    return 'debit';
+  }
+
   /**
    * Model modifiers.
    */