Closes #10204

Changelog

New

• test(tooltip): add test to cover "esc to close" functionality

Changed

• fix(tooltip): remove global/document esc keyDown handler, replace it with scoped onKeyDown handler on tooltip body
• docs(tooltip): remove interactive elements from the tooltip body in the default story
• docs(modal): add a tooltip to the WithStateManager story to more easily test tooltips inside an element with it's own "esc to close" handler.

Testing / Reviewing

I'm sorry this has quite a few steps to fully test the changes here:

• In the carbon-components-react storybook deploy preview:
  • Ensure tooltip without interactive body contents can be closed via esc
  • Ensure tooltip with interactive body contents can be close via esc
  • Ensure Modal WithStateManager tooltip can be closed via esc and does not close the modal. A second press of esc should close the modal.
• Pull this down to test locally - we need to ensure the same steps from above work w/ React v16
  • Modify the react deps in the root package.json to be 16.8.6 (here is a reference from the PR updating it to v17)
  • Modify the react deps in the packages/react/package.json to be 16.8.6
  • yarn install at the root
  • yarn start the packages/react storybook
  • You can validate the storybook is using React v16 by adding a console.log(React.version); (anywhere, in a component, etc) - it should output to the console v16.8.6
  • Redo the tests that you did on the deploy preview:
    • Ensure tooltip without interactive body contents can be closed via esc
    • Ensure tooltip with interactive body contents can be close via esc
    • Ensure Modal WithStateManager tooltip can be closed via esc and does not close the modal. A second press of esc should close the modal.