refactor: use new format for packs

packs/items/Plattenbeinschienen__3_yDq5abf47mYIw3OG.json

@@ -0,0 +1,35 @@
+{
+  "_id": "yDq5abf47mYIw3OG",
+  "name": "Plattenbeinschienen +3",
+  "type": "armor",
+  "img": "icons/equipment/leg/cuisses-plate-reticulated-steel-blue.webp",
+  "effects": [
+    "dJcAdxKxsUIXzHCa"
+  ],
+  "folder": null,
+  "sort": 0,
+  "flags": {},
+  "system": {
+    "description": null,
+    "quantity": 1,
+    "price": 4258,
+    "availability": "unset",
+    "storageLocation": "-",
+    "equipped": false,
+    "armorValue": 1,
+    "armorMaterialType": "plate",
+    "armorType": "greaves"
+  },
+  "ownership": {
+    "default": 0
+  },
+  "_stats": {
+    "systemId": "ds4",
+    "systemVersion": "1.18.1",
+    "coreVersion": "10.290",
+    "createdTime": 1668995343577,
+    "modifiedTime": 1668995457944,
+    "lastModifiedBy": "DS4BuildSystem00"
+  },
+  "_key": "!items!yDq5abf47mYIw3OG"
+}