Description of the issue/feature this PR addresses:

 - The feature of shared trusted PoS is not working in saas~17.4 
![image](https://github.com/user-attachments/assets/0ba4a40a-1374-42b0-8554-f5e83a63eb8b)

 - This is due to fact, the current order is never added to the pendingOrder object. so when [syncAllOrders](https://github.com/odoo/odoo/blob/saas-17.4/addons/point_of_sale/static/src/app/store/pos_store.js#L981) is called from [_setOrder](https://github.com/odoo/odoo/blob/saas-17.4/addons/point_of_sale/static/src/app/screens/ticket_screen/ticket_screen.js#L600-L605) is called, [no orders](https://github.com/odoo/odoo/blob/saas-17.4/addons/point_of_sale/static/src/app/store/pos_store.js#L989) are returned and  function [exits early
](https://github.com/odoo/odoo/blob/saas-17.4/addons/point_of_sale/static/src/app/store/pos_store.js#L998)

Desired behavior after PR is merged:
- Feature works as intended.


Steps to reproduce:
- install point_of_sale in saas-17.4 version
- from setting, add a trusted pos B  for  Pos A
- open both pos in two different tabs/browsers.
- Create one order from PoS A,
- on opening orders page from pos B, that order should be loaded but it does not.
![image](https://github.com/user-attachments/assets/d47f2fb2-d745-4cb4-949f-d15bca46f723)

opw-4160166


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