pr05 Typescript #8: migrate client/components/Menubar/MenubarSubmenu#3623

raclim merged 14 commits intoprocessing:developprocessing/p5.js-web-editor:developfrom

clairep94:pr05/Migrate_client_components_final_rebuild__MenubarSubmenu_attempt_2clairep94/p5.js-web-editor:pr05/Migrate_client_components_final_rebuild__MenubarSubmenu_attempt_2Copy head branch name to clipboard