Fix mouse clicks on remote-open-folder UI (#19851)

Also change Zed's standard style to use
`.track_focus(&self.focus_handle(cx))`, instead of
`.track_focus(&self.focus_handle)`, to catch these kinds of errors more
easily in the future.

Release Notes:

- N/A

---------

Co-authored-by: Conrad <conrad@zed.dev>

crates/outline_panel/src/outline_panel.rs

@@ -3787,7 +3787,7 @@ impl Render for OutlinePanel {
                     }
                 }),
             )
-            .track_focus(&self.focus_handle);
+            .track_focus(&self.focus_handle(cx));
 
         if self.cached_entries.is_empty() {
             let header = if self.updating_fs_entries {