Release Notes:
- N/A
---
In the same vein as #29538, the "Services" menu on macOS depended on the
text being exactly "Services", not allowing for i18n of the menu name.
This PR introduces a new menu type called `OsMenu` that defines a
special menu that can be populated by the system. Currently, it takes
one enum value, `ServicesMenu` that tells the system to populate its
contents with the items it would usually populate the "Services" menu
with.
An example of this being used has been implemented in the `set_menus`
example:
`cargo run -p gpui --example set_menus`
---
Point to consider:
In `mac/platform.rs:414` the existing code for setting the "Services"
menu remains for backwards compatibility. Should this remain now that
this new method exists to set the menu, or should it be removed?
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Co-authored-by: Mikayla Maki <mikayla.c.maki@gmail.com>