[UI] Implement "checked_by" for SalesOrderShipment (#10654)

* Add "checked" column to SalesOrderStatus table

* Add API filter for "checked" status

* Add Checked / Not Checked badge

* Add actions to check / uncheck shipment

* Add modal for changing checked_by status

* Display checked_by user

* Tweak wording

* Bump API version

* Update CHANGELOG file

* Update docs

* Add new global setting

- Prevent shipment completion which have not been checked

* Test if shipment has been checked

* Updated unit tests

* Updated type hinting

(may as well while I'm here)

* Adjust shipment icon

* Add "order_outstanding" filter for SalesOrderShipment table

docs/docs/sales/sales_order.md

@@ -110,6 +110,18 @@ After shipments were created, user can either:
 
 During the allocation process, user is required to select the desired shipment that will contain the stock items.
 
+### Check Shipment
+
+Shipments can be marked as "checked" to indicate that the items in the shipment has been verified. To mark a shipment as "checked", open the shipment actions menu, and select the "Check" action:
+
+{{ image("order/so_shipment_check.png", "Check shipment") }}
+
+The shipment will be marked as checked by the current user.
+
+### Uncheck Shipment
+
+If the shipment requires further verification after being marked as "checked", it can be marked as "unchecked" in a similar manner.
+
 ### Complete Shipment
 
 To complete a shipment, click on the <span class="badge inventree nav side">{{ icon("truck-loading") }} Pending Shipments</span> tab then click on {{ icon("truck-delivery") }} button shown in the shipment table.
@@ -221,3 +233,4 @@ The following [global settings](../settings/global.md) are available for sales o
 {{ globalsetting("SALESORDER_DEFAULT_SHIPMENT") }}
 {{ globalsetting("SALESORDER_EDIT_COMPLETED_ORDERS") }}
 {{ globalsetting("SALESORDER_SHIP_COMPLETE") }}
+{{ globalsetting("SALESORDER_SHIPMENT_REQUIRES_CHECK") }}