added storageLocation property to items

Additions:
- added storageLocation property to classes
- added storageLocation field to template
- added localization

Changes:
- changed default values for item string properties to "-"

Fixes:
- fixed CSS side-property flex properties
  such that new text field is properly shown
- fixed for="..." setting for item's data.price label

src/template.json

@@ -46,7 +46,8 @@
             "physical": {
                 "quantity": 1,
                 "price": 0,
-                "availability": "none"
+                "availability": "-",
+                "storageLocation": "-"
             },
             "equipable": {
                 "equipped": false