[Feature Request] Support vue3

[YunYouJun]

I use it in Vue 3 and get this.

node_modules/vue-gh-corners/dist/vue-github-corners.esm.mjs:2:7: error: No matching export for import "default"

import Vue from 'vue';

[YunYouJun]

Do you have any plans to develop it?

If not, I can create a PR for it.
I want to use vite + ts for its development instead of bili.

[j796160836]

+1 for this
I'm also plan to migrating to vue 3.