Fix clippy::len_zero lint style violations (#36589)

Related: #36577

Release Notes:

- N/A

---------

Signed-off-by: Umesh Yadav <git@umesh.dev>

crates/assistant_tools/src/find_path_tool.rs

@@ -234,7 +234,7 @@ impl ToolCard for FindPathToolCard {
         workspace: WeakEntity<Workspace>,
         cx: &mut Context<Self>,
     ) -> impl IntoElement {
-        let matches_label: SharedString = if self.paths.len() == 0 {
+        let matches_label: SharedString = if self.paths.is_empty() {
             "No matches".into()
         } else if self.paths.len() == 1 {
             "1 match".into()