add vue2 demo

packages/artplayer-template/vue.js/vite.config.js

@@ -1,14 +0,0 @@
-import { fileURLToPath, URL } from 'url'
-
-import { defineConfig } from 'vite'
-import vue from '@vitejs/plugin-vue'
-
-// https://vitejs.dev/config/
-export default defineConfig({
-  plugins: [vue()],
-  resolve: {
-    alias: {
-      '@': fileURLToPath(new URL('./src', import.meta.url))
-    }
-  }
-})