Feat: overflow menu item disable (#810)
Feat: overflow menu item disable (#810)

* feat: Added disable prop to OverflowMenuItem, resolves #809

* fix(OverflowMenu): added tabindex and changed syntax

carbon-design-system/carbon-components-react,joshblack/carbon-components-react,carbon-design-system/carbon-components,carbon-design-system/carbon-components,joshblack/carbon-components-react,carbon-design-system/carbon-components-react,carbon-design-system/carbon-components