feat(unplugin): remove import modifier when module is external

[Justinidlerz]

Types of changes

• [ ] New feature
• [x] Bug fix
• [ ] Documentation change
• [ ] Coding style change
• [ ] Refactoring
• [ ] Performance improvement
• [ ] Test cases
• [ ] Continuous integration
• [ ] Typescript definition change
• [ ] Breaking change

Background and context

Due to import modifier priority is higher than externals, the import path will be modified and lost context chain.

For example: Main app:

import {Provider} from '@arco-design/web';

const App = () => {
    return <Provider><SubApp /></Provider>
}

Sub app:

import {Table} from '@arco-design/web';

const App = () => {
    return <Table />
}

subapp.rspack.config.js

module.exports = {
    externals: {
        '@arco-design/web': 'window.externals["@arco-design/web"]'
    }
}

There we want't modify the import {Table} from '@arco-design/web' to import Table from '@arco-design/web/es/Table'

Changelog

Changelog(CN)	Changelog(EN)	Related issues
修复由于引用修改导致 external 失效问题	Fix external problems due to import modify

Checklist:

• [ ] Provide changelog for relevant changes (e.g. bug fixes and new features) if applicable.
• [ ] Changes are submitted to the appropriate branch (e.g. features should be submitted to feature branch and others should be submitted to master branch)

Other information