Fix T88569: UI VSE: Menu-based range change, doesn't update the Timeline scrollbar width

Use the appropriate notifier, listeners were already doing the rest
properly.

Maniphest Tasks: T88569

Differential Revision: https://developer.blender.org/D11436

source/blender/editors/space_sequencer/sequencer_edit.c

@@ -3053,7 +3053,7 @@ static int sequencer_set_range_to_strips_exec(bContext *C, wmOperator *op)
     scene->r.efra = efra;
   }
 
-  WM_event_add_notifier(C, NC_SCENE | ND_FRAME, scene);
+  WM_event_add_notifier(C, NC_SCENE | ND_FRAME_RANGE, scene);
 
   return OPERATOR_FINISHED;
 }