watch grabbable in edit mode

wlx-overlay-s/src/windowing/manager.rs

@@ -300,6 +300,11 @@ impl<T> OverlayWindowManager<T> {
             }
         }
         if changed && let Some(watch) = self.mut_by_id(self.watch_id) {
+            watch
+                .config
+                .active_state
+                .iter_mut()
+                .for_each(|f| f.grabbable = enabled);
             watch
                 .config
                 .backend