### What?
Adds new option `admin.components.listMenuItems` to allow custom
components to be injected after the existing list controls in the
collection list view.
### Why?
Needed to facilitate import/export plugin.
#### Testing
Use `pnpm dev admin` to see example component and see test added to
`test/admin/e2e/list-view`.
## Update since feature was reverted
The custom list controls and now rendered with no surrounding padding or
border radius.
<img width="596" alt="Screenshot 2025-02-17 at 5 06 44 PM"
src="https://github.com/user-attachments/assets/57209367-5433-4a4c-8797-0f9671da15c8"
/>
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Co-authored-by: Dan Ribbens <dan.ribbens@gmail.com>
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