Added default behaviour for return key

ui/BankingiOSApp/BankingiOSApp/ui/UIKitTextField.swift

@@ -115,6 +115,10 @@ struct UIKitTextField: UIViewRepresentable {
                 didHandleReturnKey = nextView?.becomeFirstResponder() ?? false
             }
 
+            if didHandleReturnKey == false {
+                textField.resignFirstResponder() // default behaviour
+            }
+            
             return didHandleReturnKey
         }