support rspack arco vue plugins

[Trojan0523]

• I'm sure this does not appear in the issue list of the repository

Basic Info

What are the similar cases of this feature

expected way to implement: (rsbuild.config.ts)

const ArcoRspackPlugin = require('@arco-plugins/rspack-vue');
export default {
  rspack: {
    plugins: [
        new ArcoRspackPlugin({ theme: '@arco-theme/xxx' })
      ],
    },
}

What problem does this feature solve?

I was using rsbuild and @arco-design/web-vue, but the default theme didn’t quite meet our preferences. So, I explored the theme market to find a more appealing one. However, I encountered a problem when trying to import the new theme into rsbuild—I couldn’t figure out how to make it work. Is there any way to successfully integrate a theme into rsbuild? By the way, both frameworks are fantastic tools.