GridDelegate: lazy load menu
The menu is only used for keyboard navigation, so no need to always load it. This speeds up the compilation of GridDelegate.
(cherry picked from commit kcmutils!165 (merged))
Edited by Fushan Wen
The menu is only used for keyboard navigation, so no need to always load it. This speeds up the compilation of GridDelegate.
(cherry picked from commit kcmutils!165 (merged))