
added Semantics wrapper over slider to add appropriate a11y semantic attributes to slider Before: https://screenshot.googleplex.com/8jmDh3RSB3oG5Z2 After: https://screenshot.googleplex.com/7Z4FdVgwcC4ZQxm fixes b/340638215
added Semantics wrapper over slider to add appropriate a11y semantic attributes to slider Before: https://screenshot.googleplex.com/8jmDh3RSB3oG5Z2 After: https://screenshot.googleplex.com/7Z4FdVgwcC4ZQxm fixes b/340638215