feat: Add PWA support

package.json

@@ -9,12 +9,14 @@
   },
   "dependencies": {
     "core-js": "^3.6.5",
+    "register-service-worker": "^1.7.1",
     "vue": "^2.6.11",
     "vuetify": "^2.4.0"
   },
   "devDependencies": {
     "@vue/cli-plugin-babel": "~4.5.0",
     "@vue/cli-plugin-eslint": "~4.5.0",
+    "@vue/cli-plugin-pwa": "~4.5.0",
     "@vue/cli-service": "~4.5.0",
     "babel-eslint": "^10.1.0",
     "eslint": "^6.7.2",
@@ -44,4 +46,4 @@
     "last 2 versions",
     "not dead"
   ]
-}
+}