open new buffer (#11203)

Release Notes:

- Allow creating new untitled buffers in remote projects

TODO:
- Add a Test
- Fix version number check

crates/feedback/src/feedback_modal.rs

@@ -142,11 +142,9 @@ impl FeedbackModal {
 
             cx.spawn(|workspace, mut cx| async move {
                 let markdown = markdown.await.log_err();
-                let buffer = project
-                    .update(&mut cx, |project, cx| {
-                        project.create_buffer("", markdown, cx)
-                    })?
-                    .expect("creating buffers on a local workspace always succeeds");
+                let buffer = project.update(&mut cx, |project, cx| {
+                    project.create_local_buffer("", markdown, cx)
+                })?;
 
                 workspace.update(&mut cx, |workspace, cx| {
                     let system_specs = SystemSpecs::new(cx);