Cleaned up action buttons for StockLocation
Cleaned up action buttons for StockLocation

- Merged edit/create/delete into a single drop-down button 
SchrodingersGat/InvenTree,inventree/InvenTree,SchrodingersGat/InvenTree,inventree/InvenTree,inventree/InvenTree,inventree/InvenTree,SchrodingersGat/InvenTree,SchrodingersGat/InvenTree