feat: upgrade vuetify from 1.5.4 to 2.1.12

Snyk has created this PR to upgrade vuetify from 1.5.4 to 2.1.12.

See this package in NPM:
https://www.npmjs.com/package/vuetify

See this project in Snyk:
https://app.snyk.io/org/drakeg-github-marketplace/project/57ee2323-39ec-4ca4-8ab4-9c8410cd883c?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package.json

@@ -10,7 +10,7 @@
   "dependencies": {
     "vue": "^2.5.22",
     "vue-router": "3.1.3",
-    "vuetify": "1.5.4",
+    "vuetify": "2.1.12",
     "vuex": "3.1.2"
   },
   "devDependencies": {