Upgrade Spree SDK to 4.7.0 and add node-fetch to dependencies

package.json

@@ -20,7 +20,7 @@
   },
   "dependencies": {
     "@react-spring/web": "^9.2.1",
-    "@spree/storefront-api-v2-sdk": "^4.5.4",
+    "@spree/storefront-api-v2-sdk": "^4.7.0",
     "@types/qs": "^6.9.7",
     "@vercel/fetch": "^6.1.0",
     "autoprefixer": "^10.2.6",
@@ -37,6 +37,7 @@
     "next": "^11.0.0",
     "next-seo": "^4.26.0",
     "next-themes": "^0.0.14",
+    "node-fetch": "^2.6.1",
     "postcss": "^8.3.5",
     "postcss-nesting": "^8.0.1",
     "qs": "^6.7.0",