Bump core-js from 3.9.1 to 3.16.1

Bumps [core-js](https://github.com/zloirock/core-js) from 3.9.1 to 3.16.1.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](zloirock/core-js@v3.9.1...v3.16.1)

---
updated-dependencies:
- dependency-name: core-js
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -9,7 +9,7 @@
   },
   "dependencies": {
     "album-art": "^1.0.4",
-    "core-js": "^3.6.5",
+    "core-js": "^3.16.1",
     "qwebchannel": "^5.9.0",
     "vue": "^2.6.11",
     "vue-audio-visual": "^2.2.2",