Chore(deps): Bump vue-router from 3.6.5 to 4.6.4

Bumps [vue-router](https://github.com/vuejs/router) from 3.6.5 to 4.6.4.
- [Release notes](https://github.com/vuejs/router/releases)
- [Commits](https://github.com/vuejs/router/commits/v4.6.4)

---
updated-dependencies:
- dependency-name: vue-router
  dependency-version: 4.6.4
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -29,7 +29,7 @@
     "vue-frag": "^1.4.3",
     "vue-material-design-icons": "^5.3.1",
     "vue-observe-visibility": "^1.0.0",
-    "vue-router": "^3.5.3",
+    "vue-router": "^4.6.4",
     "vuex": "^3.6.2"
   },
   "devDependencies": {