Introduce staff-only inline completion provider (#21739)

Release Notes:

- N/A

---------

Co-authored-by: Thorsten Ball <mrnugget@gmail.com>
Co-authored-by: Bennet <bennet@zed.dev>
Co-authored-by: Thorsten <thorsten@zed.dev>

crates/zed/src/zed.rs

@@ -197,7 +197,7 @@ pub fn initialize_workspace(
         }
 
         let inline_completion_button = cx.new_view(|cx| {
-            inline_completion_button::InlineCompletionButton::new(app_state.fs.clone(), cx)
+            inline_completion_button::InlineCompletionButton::new(workspace.weak_handle(), app_state.fs.clone(), cx)
         });
 
         let diagnostic_summary =