Tooltip z-index is hardcoded instead of using a CSS variable (--z-tooltip)

[rohitrath0d]

The theme, defines
--z-dropdown: 50 and --z-modal: 200 in 01-theme.css ,

but the tooltip pseudo-elements in tooltip.css uses a hardcoded value, defined as z-index: 1000.
This is resultant of inconsistency with the design system and could potentially be cause layering issues (tooltips always above modals),

although the strict check via showModal() , which is overriding all the possible z-index values, happens to be in place.
it could be more of, using var(--z-tooltip) for making it configurable and consistent, with the codebase.