The snippets are a `menubar` in terms of role, and is a list of items (`menitem`, `li`).
Note for myself: submenus are `menu` roles that immediately follow their triggering `menuitem` and are direct children of the parent `menu`, per WCAG. This is done in this commit.
This fixes the odd alignments of menu-wrapper names by ensuring that both menuitems and menu-wrappers (actually their child triggers) both have space for icons.
Unless a menu item has the `no-dismiss` attribute (set to either `''` or `'true'`), clicking a menu item will dismiss the menu. Clicking a submenu trigger will not dismiss the menu.
The `no-dismiss` attribute must take a string, either empty or `'true'` because react doesn't allow boolean custom attributes.