fix(layer): refresh ribbon and layer panel when entities register novel layers

src/app/properties.rs

@@ -3491,6 +3491,11 @@ handles={handles_ms:.1} panel={:.1} ribbon={ribbon_ms:.1} tail={:.1} selected={}
         if tracks_dimension_chain {
             self.tabs[i].scene.last_created_dimension = new_handle;
         }
+        if self.tabs[i].scene.layer_table_dirty {
+            self.tabs[i].scene.layer_table_dirty = false;
+            self.tabs[i].dirty = true;
+            self.refresh_layer_panel();
+        }
         new_handle
     }
 }