[FIX] sale: prevent error on clicking Edit Configuration on a combo

Currently, when a user adds a combo to an order line, and remove the name of
combo and click on Edit Configuration (pencil icon) error is encountered.

Steps to replicate:
- Install `sale_management` with demo and create a new SO.
- Add a combo product and remove the combo name and click Edit Configuration
  (pencil icon).

Error:
`TypeError: SaleProductConfiguratorController.sale_combo_configurator_get_data()
missing 1 required positional argument: 'product_template_id'`

Cause:
- When a user clicks on Edit configuration, the client-side JavaScript makes an
  RPC call to the server, targeting the `sale_combo_configurator_get_data()`
  which expects `product_template_id` at [1] and since it is removed from order
  line the error is encountered.

Solution:
- Changed the content of method `isCombo()` to use the product_template_id to
  make sure the Edit Configuration is only visible when product template is
  present.

Similar PR for reference: odoo#217464

[1]: https://github.com/odoo/odoo/blob/fa4307b9758800f26c9ee87cf3698fd60bfd1ab5/addons/sale/controllers/combo_configurator.py#L12-L14

No ID

closes odoo#239755

X-original-commit: d1ab74a
Signed-off-by: Louis Tinel (loti) <loti@odoo.com>
Signed-off-by: Bhavya Ashesh Nanavati (bhna) <bhna@odoo.com>

Author: bhna-odoo

addons/sale/static/src/js/sale_product_field.js

@@ -116,7 +116,7 @@ export class SaleOrderLineProductField extends ProductLabelSectionAndNoteField {
         return this.props.record.data.is_configurable_product;
     }
     get isCombo() {
-        return this.props.record.data.product_type === 'combo';
+        return this.props.record.data.product_template_id && this.props.record.data.product_type === 'combo';
     }
     get isDownpayment() {
         return this.props.record.data.is_downpayment;