Add aria roles for `s-tooltip`

[aaronshekey]

When our tooltips are available, we take the title attribute, remove it, and use its content to build the tooltip. We do this so we don't get the browser tooltips while viewing the custom popover, but we should probably replace this with aria-label while the popover is shown?

Additionally, there seems to be certain scenarios where the tooltip is stuck with aria-hidden="true" which seems like the opposite of what we'd like.