Sales order improvements (#8445)

* Migration for SalesOrderAllocation

- Allow allocation against order with null shipment

* Enhaced query efficiency

* Further API cleanup

* Adjust serializer

* PUI updates

* Enable editing of allocation shipment

* Improve shipment filtering

* Add sub-table for salesorderlineitem

* Add helper method to SalesOrder to return pending SalesOrderAllocations

* Fix for CUI

* Update form for CUI

* Prevent SalesOrder completion with incomplete allocations

* Fixes for StockItem API

* Frontend refactoring

* Code cleanup

* Annotate shipment information to SalesOrder API endpoint

* Update frontend PUI

* Additional filtering for SalesOrderAllocation

* Bump API version

* Hide panel based on user permissions

* js linting

* Unit test fix

* Update playwright tests

* Revert diff

* Disable playwright test (temporary)

* View output from build table

src/frontend/tests/pages/pui_sales_order.spec.ts

@@ -122,8 +122,6 @@ test('Sales Orders - Shipments', async ({ page }) => {
   await page.getByLabel('number-field-quantity').fill('123');
   await page.getByLabel('related-field-stock_item').click();
   await page.getByText('Quantity: 42').click();
-  await page.getByRole('button', { name: 'Submit' }).click();
-  await page.getByText('This field is required.').waitFor();
   await page.getByRole('button', { name: 'Cancel' }).click();
 });