agent: Render path search results with ToolCard (#28894)

Implementing the `ToolCard` for the path_search tool. It also adds the
"jump to file" functionality if you expand the results.

Release Notes:

- N/A

---------

Co-authored-by: Richard Feldman <oss@rtfeldman.com>
Co-authored-by: Agus Zubiaga <hi@aguz.me>

Cargo.lock

@@ -735,7 +735,6 @@ dependencies = [
  "web_search",
  "workspace",
  "workspace-hack",
- "worktree",
  "zed_llm_client",
 ]