Fix fifo files hanging the project wide search (#16039)

Release Notes:

- Fixed the issue related to the project wide search being stuck when
project contains .fifo files
- Might potentially solve the following issue
https://github.com/zed-industries/zed/issues/7360

crates/project_panel/src/project_panel.rs

@@ -1678,6 +1678,7 @@ impl ProjectPanel {
                         canonical_path: entry.canonical_path.clone(),
                         is_symlink: entry.is_symlink,
                         char_bag: entry.char_bag,
+                        is_fifo: entry.is_fifo,
                     });
                 }
                 if expanded_dir_ids.binary_search(&entry.id).is_err()