exports subpath with array types is not autocompleting

Does this issue occur when all extensions are disabled?: Yes

- VS Code Version: 1.109.5
- OS Version: Windows 11

This issue should apply to all OS. It's about JavaScript/TypeScript language server handling import paths.

When a dependency uses array form in the export path, e.g. in [@repobuddy/storybook](https://github.com/repobuddy/storybook/blob/main/libs/storybook/package.json):

```jsonc
{
"exports": {
".": {
"types": [
"./esm/index.d.ts",
"./src/index.ts"
],
"default": "./esm/index.js"
},
"./manager": {
"types": "./esm/manager/index.d.ts",
"default": "./esm/manager/index.js"
},
"./storybook-addon-tag-badges": {
"types": [
"./esm/storybook-addon-tag-badges/index.d.ts",
"./src/storybook-addon-tag-badges/index.ts"
],
"default": "./esm/storybook-addon-tag-badges/index.js"
},
}
}
```

The import can resolve correctly, e.g.:

```tsx
import type { Meta, StoryObj } from '@repobuddy/storybook/storybook-addon-tag-badges'
```

But the path completion does not show the subpath:

从 TypeScript 的 language server 对 package.json exports 的处理开始，复现 @repobuddy/storybook 中的示例，并比较 types 条目的标量形式和数组形式。验证 @repobuddy/storybook/storybook-addon-tag-badges import 的补全；当子路径出现且 import 仍能正确解析时，即可认为 issue 已完成。

由索引模型根据 Issue 内容生成。