Add the project search as an item in the status bar (#28388)

Was chatting with @wilhelmklopp, he pointed out that our current
UI-accessible way to access the project search was pretty obscure.


<img width="393" alt="Screenshot 2025-04-08 at 6 57 51 PM"
src="https://github.com/user-attachments/assets/636053cd-5a88-4a5e-8155-6d41d189b7db"
/>

Release Notes:

- Added a button to open the project search to the status bar

crates/search/src/search.rs

@@ -12,6 +12,7 @@ use workspace::{Toast, Workspace};
 pub mod buffer_search;
 pub mod project_search;
 pub(crate) mod search_bar;
+pub mod search_status_button;
 
 pub fn init(cx: &mut App) {
     menu::init();