fix(deps): update dependency vue to v3

Author: renovate[bot]

package-lock.json

@@ -11,7 +11,7 @@
     "axios": "0.18.0",
     "babel-runtime": "6.26.0",
     "marked": "^0.6.2",
-    "vue": "2.6.8",
+    "vue": "3.5.12",
     "vuedraggable": "2.19.2",
     "vuetify": "1.5.5",
     "vuex": "3.0.1"