Update storybook monorepo to v5.2.7 (patch)

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
@storybook/addon-actions	devDependencies	patch	5.2.6 -> 5.2.7
@storybook/addon-links	devDependencies	patch	5.2.6 -> 5.2.7
@storybook/addon-notes	devDependencies	patch	5.2.6 -> 5.2.7
@storybook/addons	devDependencies	patch	5.2.6 -> 5.2.7
@storybook/angular	devDependencies	patch	5.2.6 -> 5.2.7
@storybook/cli	devDependencies	patch	5.2.6 -> 5.2.7

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Release Notes

storybookjs/storybook

### [`v5.2.7`](https://togithub.com/storybookjs/storybook/blob/master/CHANGELOG.md#​527-November-30-2019) [Compare Source](https://togithub.com/storybookjs/storybook/compare/v5.2.6...v5.2.7) ##### Bug Fixes - Addon-contexts: Fix 'cannot read property h of undefined' in preact ([#​9001](https://togithub.com/storybookjs/storybook/pull/9001)) - Addon-viewports: Fix missing TypeScript types ([#​8848](https://togithub.com/storybookjs/storybook/pull/8848)) - Addon-A11y: Show errors, reset config properly ([#​8779](https://togithub.com/storybookjs/storybook/pull/8779)) - UI: Store layout state in sessionStorage ([#​8786](https://togithub.com/storybookjs/storybook/pull/8786)) - UI: Fix MobileLayout component error on master ([#​8941](https://togithub.com/storybookjs/storybook/pull/8941)) - Addon-analytics: Fix 'path is required in .pageview()' ([#​8468](https://togithub.com/storybookjs/storybook/pull/8468))

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