remote dev: Allow canceling language server work in editor (#19946)

Release Notes:

- Added ability to cancel language server work in remote development.

Demo:



https://github.com/user-attachments/assets/c9ca91a5-617f-4886-a458-87c563c5a247

crates/editor/src/editor.rs

@@ -10460,7 +10460,7 @@ impl Editor {
 
     fn cancel_language_server_work(
         &mut self,
-        _: &CancelLanguageServerWork,
+        _: &actions::CancelLanguageServerWork,
         cx: &mut ViewContext<Self>,
     ) {
         if let Some(project) = self.project.clone() {