## Summary
The purpose of this pull request is to add new menu items for the menu
bar as mentioned on this [discussion or feature
request](https://github.com/zed-industries/zed/discussions/28153#discussion-8169826).
The actions are already supported by the command palette, but not
available on the `MenuBar`.
## Screenshot
<img width="498" height="392" alt="image"
src="https://github.com/user-attachments/assets/8ad0e836-8295-4b46-a67a-0edf1408ad59"
/>
Release Notes:
- Added `SelectPrevious` and `SelectAllMatches` items to the `Selection`
app menu.