Allow quantity editing via /api/stock/ endpoint
Allow quantity editing via /api/stock/ endpoint

- Allows creation of a new StockItem with a specified quantity

SchrodingersGat/InvenTree,SchrodingersGat/InvenTree,SchrodingersGat/InvenTree,inventree/InvenTree,inventree/InvenTree,inventree/InvenTree,inventree/InvenTree,SchrodingersGat/InvenTree