[FIX] stock_picking_batch: print move lines by location and product
Issue Before This Commit:
In the batch transfer report, move lines are ordered by the picking's batch sequence (picking_id.batch_sequence). When operators use the document to pick
items, they have to scan through the report to find all lines for the same
product. As a result, operators lose time scanning the document and
risk of missing lines.
Steps to Reproduce:

Install the stock_picking_batch module.
Create multiple deliveries with several common products.
Add these deliveries to a batch transfer and print the batch transfer report.
Observe that product lines are ordered by location and then by picking.

Cause of the issue:
The batch transfer report currently sorts move lines by picking in the report
(picking_id.batch_sequence). When the same product exists in another picking,
This causes lines for the same product to be scattered across the report instead
of being grouped together, causing the product to appear in multiple places in
the document.
After This Commit:
In the report, move line sorting by picking (picking_id.batch_sequence) has
been replaced with sorting by product (product_id.id). Move lines are now
ordered by product, so similar products are displayed together in the document,
This helps operators find products more quickly, reduces scanning effort, and
makes the process more reliable.
TaskID-5379367
closes odoo/odoo#252064
X-original-commit: 52b5c717ada89b51bacbc29592009d116a6f4c98
Signed-off-by: Steve Van Essche svs@odoo.com
Signed-off-by: Tushar Pravinbhai Mandani (tpma) tpma@odoo.com