chore(deps): update dependency react-dom to v16.8.2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
react-dom	dependencies	patch	16.8.1 -> 16.8.2	homepage, source

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Release Notes

facebook/react

### [`v16.8.2`](https://togithub.com/facebook/react/blob/master/CHANGELOG.md#​1682-February-14-2019) [Compare Source](https://togithub.com/facebook/react/compare/v16.8.1...v16.8.2) ##### React DOM - Fix `ReactDOM.render` being ignored inside `useEffect`. ([@​gaearon](https://togithub.com/gaearon) in [#​14799](https://togithub.com/facebook/react/pull/14799)) - Fix a crash when unmounting empty portals. ([@​gaearon](https://togithub.com/gaearon) in [#​14820](https://togithub.com/facebook/react/pull/14820)) - Fix `useImperativeHandle` to work correctly when no deps are specified. ([@​gaearon](https://togithub.com/gaearon) in [#​14801](https://togithub.com/facebook/react/pull/14801)) - Fix `crossOrigin` attribute to work in SVG `image` elements. ([@​aweary](https://togithub.com/aweary) in [#​14832](https://togithub.com/facebook/react/pull/14832)) - Fix a false positive warning when using Suspense with Hooks. ([@​gaearon](https://togithub.com/gaearon) in [#​14821](https://togithub.com/facebook/react/pull/14821)) ##### React Test Utils and React Test Renderer - Include component stack into the `act()` warning. ([@​threepointone](https://togithub.com/threepointone) in [#​14855](https://togithub.com/facebook/react/pull/14855))

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