fix: draw the focused window border for the current window only

src/shell/workspace.rs

@@ -1753,13 +1753,17 @@ impl Workspace {
                 self.floating_layer
                     .render::<R>(
                         renderer,
+                        render_focus
+                            .then(|| {
                                 focused.as_ref().and_then(|target| {
                                     if let FocusTarget::Window(mapped) = target {
                                         Some(mapped)
                                     } else {
                                         None
                                     }
-                        }),
+                                })
+                            })
+                            .flatten(),
                         resize_indicator.clone(),
                         indicator_thickness,
                         alpha,