[feature request] update reactively and add a refresh button for assets

[LoTwT]

description

After creating new asset files in the project, the assets tab will not update reactively and has no refresh button now. Adding a refresh button and updating assets reactively will increase DX.

expected

• add a refresh button
• update assets' states reactively

to confirm

• how to watch the creation and deletion of assets ( need to find an appropriate way )
• should the states of assets in the preview drawer be updated reactively? ( It could rely on vite hmr )

[OneGIl]

不知道是否可以参考老版的 vite-plugin-vue-devtools 中的代码？ 我曾提交过一个pr，里面包含了file watch的功能。
希望对你有帮助: ) vite-plugin-vue-devtools #183