Bump nuxt-shopify from 1.7.1 to 1.8.0

Bumps [nuxt-shopify](https://github.com/Gomah/nuxt-shopify) from 1.7.1 to 1.8.0.
- [Release notes](https://github.com/Gomah/nuxt-shopify/releases)
- [Changelog](https://github.com/Gomah/nuxt-shopify/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Gomah/nuxt-shopify/compare/v1.7.1...v1.8.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -16,7 +16,7 @@
     "node-sass": "^4.13.1",
     "nuxt": "^2.11.0",
     "nuxt-buefy": "^0.3.23",
-    "nuxt-shopify": "^1.7.1",
+    "nuxt-shopify": "^1.8.0",
     "sass-loader": "^8.0.2",
     "vuex-persistedstate": "^2.7.1"
   },