Fix linting.

Signed-off-by: Benjamin Perseghetti <bperseghetti@rudislabs.com>

Author: bperseghetti

src/gui/plugins/modules/EntityContextMenu.cc

@@ -37,10 +37,10 @@ namespace gz::sim
   /// \brief Private data class for EntityContextMenu
   class EntityContextMenuPrivate
   {
-    
+
     /// \brief Protects variable changed through services.
     public: std::mutex mutex;
-    
+
     /// \brief Gazebo communication node.
     public: transport::Node node;