Refactor StockList

lib/inventree/model.dart

@@ -392,7 +392,7 @@ class InvenTreeModel {
       String search = params["search"] ?? "";
       String original = params["original_search"] ?? "";
 
-      params["search"] = "${search} ${original}";
+      params["search"] = "${search} ${original}".trim();
 
       params.remove("original_search");
     }

lib/inventree/stock.dart

@@ -149,7 +149,8 @@ class InvenTreeStockItem extends InvenTreeModel {
       "part_detail": "true",
       "location_detail": "true",
       "supplier_detail": "true",
-      "cascade": "false"
+      "cascade": "false",
+      "in_stock": "true",
     };
   }