Bump vuex-persistedstate from 2.7.1 to 3.0.1

Bumps [vuex-persistedstate](https://github.com/robinvdvleuten/vuex-persistedstate) from 2.7.1 to 3.0.1.
- [Release notes](https://github.com/robinvdvleuten/vuex-persistedstate/releases)
- [Commits](https://github.com/robinvdvleuten/vuex-persistedstate/compare/v2.7.1...v3.0.1)

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

package.json

@@ -20,7 +20,7 @@
     "nuxt-buefy": "^0.3.31",
     "nuxt-shopify": "^1.8.0",
     "sass-loader": "^8.0.2",
-    "vuex-persistedstate": "^2.7.1"
+    "vuex-persistedstate": "^3.0.1"
   },
   "devDependencies": {
     "@nuxtjs/eslint-config": "^2.0.2",