[tooltip] live demo has bugs

[laurenmrice]

Tooltip live demo bugs

• The Live demo example on the usage page makes no sense. When the focus lands on the i icon, nothing happens. Then I tab again, and focus remains on the 'i' and suddenly it has a tip. Focus should immediately trigger the tip to appear.

• In the same Live demo section, changing the Variant selector to be definition tooltip also shows an implementation problem. The definition never appears on focus/hover but instead appears exclusively on click/activate. It is implemented as a TOGGLETIP instead of as a tooltip.

  • This implmentation should be optional and not the default interaction which will be fixed with issue #12921, but it should still be accurate in the live demo.

[alisonjoseph]

Replaced with storybook demo #3716