* fix: first pathrough of migration to AbstractNav forwarding ref

does not currently work, due to various bugs

* Various fixes for context functionality for AbstractNav

* Apply suggestions from code review

Co-Authored-By: Jimmy Jia <tesrin@gmail.com>

* Migrate AbstractNav implementation to use hooks in replace of HOC

This reduces the complexity of the AbstractNav implementation,
especially in regards to how the contexts are integrated with it.

* fix: Nav and TabContainer selectors not finding the right element

This fixes the assertion issues caused by the selectors testing
implementation details to find the DOM elements, rather than
testing for something that is gauranteed to be in the
implementation (E.g. the class `nav` on the Nav component, since
it's part of the Bootstrap design spec) of the rendered DOM
element.

* fix: AbstractNav not properly merging both of its refs

Currently, we use a ref to gain access to the underlying
component to implement our own functionality. However, this causes
an issue with not allowing the user to forward their own ref
to gain access to the underlying component. using `useMergedRefs`,
we are able to forward both refs to the underlying component.

* use useMergedHooks from restart/hooks

fix: Fix DropdownToggleProps

`formBasicChecbox` -> `formBasicCheckbox`

Bumps [gatsby](https://github.com/gatsbyjs/gatsby) from 2.13.52 to 2.13.55.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/compare/gatsby@2.13.52...gatsby@2.13.55

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

 test(Accordion): change accordion spec to test closer to design

* chore(deps-dev): bump react from 16.8.6 to 16.9.0

Bumps [react](https://github.com/facebook/react/tree/HEAD/packages/react) from 16.8.6 to 16.9.0.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v16.9.0/packages/react

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* more

* chore(deps): bump react-dom from 16.8.6 to 16.9.0 in /www

Bumps [react-dom](https://github.com/facebook/react/tree/HEAD/packages/react-dom) from 16.8.6 to 16.9.0.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v16.9.0/packages/react-dom

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* more

Bumps [react-test-renderer](https://github.com/facebook/react/tree/HEAD/packages/react-test-renderer) from 16.8.6 to 16.9.0.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v16.9.0/packages/react-test-renderer

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [husky](https://github.com/typicode/husky) from 3.0.2 to 3.0.3.
- [Release notes](https://github.com/typicode/husky/releases)
- [Changelog](https://github.com/typicode/husky/blob/master/CHANGELOG.md)
- [Commits](https://github.com/typicode/husky/compare/v3.0.2...v3.0.3

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@types/react](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react) from 16.8.25 to 16.9.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@mdx-js/mdx](https://github.com/mdx-js/mdx) from 1.1.6 to 1.2.2.
- [Release notes](https://github.com/mdx-js/mdx/releases)
- [Changelog](https://github.com/mdx-js/mdx/blob/master/changelog.md)
- [Commits](https://github.com/mdx-js/mdx/compare/v1.1.6...v1.2.2

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [gatsby-remark-prismjs](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-remark-prismjs) from 3.3.4 to 3.3.5.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-remark-prismjs/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/gatsby-remark-prismjs@3.3.5/packages/gatsby-remark-prismjs

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [gatsby-transformer-remark](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-transformer-remark) from 2.6.11 to 2.6.12.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-transformer-remark/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/gatsby-transformer-remark@2.6.12/packages/gatsby-transformer-remark

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

The display name is also being used as a selector in the
Accordion spec re-write, so it's important that this display name
matches up with the name specified in the spec.

Unfortunately, a lot of our components are relying on a display
name for testing, which seems to be testing implementation
details. Hopefully we can migrate away from using display names
as selectors in our unit tests.

A general re-write of the way we test the Accordion component,
as the previous behavior wasn't explicitely testing the
functionality of the Accordion component.

Bumps [@types/react](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react) from 16.8.24 to 16.8.25.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [astroturf](https://github.com/4Catalyzer/astroturf) from 0.9.9 to 0.9.10.
- [Release notes](https://github.com/4Catalyzer/astroturf/releases)
- [Changelog](https://github.com/4Catalyzer/astroturf/blob/master/CHANGELOG.md)
- [Commits](https://github.com/4Catalyzer/astroturf/compare/v0.9.9...v0.9.10

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [gatsby-source-filesystem](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-source-filesystem) from 2.1.8 to 2.1.9.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-source-filesystem/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/gatsby-source-filesystem@2.1.9/packages/gatsby-source-filesystem

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@mdx-js/mdx](https://github.com/mdx-js/mdx) from 1.1.5 to 1.1.6.
- [Release notes](https://github.com/mdx-js/mdx/releases)
- [Changelog](https://github.com/mdx-js/mdx/blob/master/changelog.md)
- [Commits](https://github.com/mdx-js/mdx/compare/v1.1.5...v1.1.6

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [gatsby-transformer-remark](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-transformer-remark) from 2.6.10 to 2.6.11.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-transformer-remark/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/gatsby-transformer-remark@2.6.11/packages/gatsby-transformer-remark

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [gatsby-plugin-mdx](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-plugin-mdx) from 1.0.22 to 1.0.23.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-plugin-mdx/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/gatsby-plugin-mdx@1.0.23/packages/gatsby-plugin-mdx

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@mdx-js/react](https://github.com/mdx-js/mdx) from 1.1.5 to 1.1.6.
- [Release notes](https://github.com/mdx-js/mdx/releases)
- [Changelog](https://github.com/mdx-js/mdx/blob/master/changelog.md)
- [Commits](https://github.com/mdx-js/mdx/compare/v1.1.5...v1.1.6

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [gatsby](https://github.com/gatsbyjs/gatsby) from 2.13.51 to 2.13.52.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/compare/gatsby@2.13.51...gatsby@2.13.52

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [dtslint](https://github.com/Microsoft/dtslint) from 0.9.0 to 0.9.1.
- [Release notes](https://github.com/Microsoft/dtslint/releases)
- [Commits](https://github.com/Microsoft/dtslint/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [sinon](https://github.com/sinonjs/sinon) from 7.4.0 to 7.4.1.
- [Release notes](https://github.com/sinonjs/sinon/releases)
- [Changelog](https://github.com/sinonjs/sinon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sinonjs/sinon/commits/v7.4.1

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

fix: Migrate more components to properly forward refs

Bumps [gatsby](https://github.com/gatsbyjs/gatsby) from 2.13.50 to 2.13.51.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/compare/gatsby@2.13.50...gatsby@2.13.51

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@restart/hooks](https://github.com/jquense/react-common-hooks) from 0.3.8 to 0.3.9.
- [Release notes](https://github.com/jquense/react-common-hooks/releases)
- [Changelog](https://github.com/react-restart/hooks/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jquense/react-common-hooks/compare/v0.3.8...v0.3.9

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

- Add a displayName property to each function component
- Revert DropdownItemSpec changes
- Fix rendering issues caused by callback functions via useCallback
- Reduce imperative code in Toast via useTimeout hook
- Hoist function out of Tabs render.

Bumps [@mdx-js/mdx](https://github.com/mdx-js/mdx) from 1.1.4 to 1.1.5.
- [Release notes](https://github.com/mdx-js/mdx/releases)
- [Changelog](https://github.com/mdx-js/mdx/blob/master/changelog.md)
- [Commits](https://github.com/mdx-js/mdx/compare/v1.1.4...v1.1.5

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@fortawesome/fontawesome-svg-core](https://github.com/FortAwesome/Font-Awesome) from 1.2.20 to 1.2.21.
- [Release notes](https://github.com/FortAwesome/Font-Awesome/releases)
- [Changelog](https://github.com/FortAwesome/Font-Awesome/blob/master/CHANGELOG.md)
- [Commits](https://github.com/FortAwesome/Font-Awesome/commits

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [@fortawesome/free-brands-svg-icons](https://github.com/FortAwesome/Font-Awesome) from 5.10.0 to 5.10.1.
- [Release notes](https://github.com/FortAwesome/Font-Awesome/releases)
- [Changelog](https://github.com/FortAwesome/Font-Awesome/blob/master/CHANGELOG.md)
- [Commits](https://github.com/FortAwesome/Font-Awesome/compare/5.10.0...5.10.1

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>