Refactor button in first step of "order parts" wizard
Refactor button in first step of "order parts" wizard

- "new supplier part" button was broken
- Was linked to the old "launchModalForm" code
- Now calls createSupplierPart

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