Update dependency @storybook/react to v5.2.8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@storybook/react	devDependencies	patch	5.2.6 -> 5.2.8

---

Release Notes

storybookjs/storybook

v5.2.8

Compare Source

Bug Fixes

• UI: Fix layout of Preview container (#​8628)
• Core: Use stable package to ensure story sorting is stable (#​8795)
• Source-loader: Warn if applied to non-stories file (#​8773)

v5.2.7

Compare Source

Bug Fixes

• Addon-contexts: Fix 'cannot read property h of undefined' in preact (#​9001)
• Addon-viewports: Fix missing TypeScript types (#​8848)
• Addon-A11y: Show errors, reset config properly (#​8779)
• UI: Store layout state in sessionStorage (#​8786)
• UI: Fix MobileLayout component error on master (#​8941)
• Addon-analytics: Fix 'path is required in .pageview()' (#​8468)

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Enabled.

♻️ Rebasing: Whenever PR becomes conflicted, or if you modify the PR title to begin with "rebase!".

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

Newsflash: Renovate has joined WhiteSource, and is now free for all use. Learn more or view updated terms and privacy policies.

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit a6d52a8:

Sandbox	Source
jolly-bogdan-ou8v6	Configuration

[codecov]

Codecov Report

Merging #231 into next will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             next     #231   +/-   ##
=======================================
  Coverage   98.58%   98.58%           
=======================================
  Files           8        8           
  Lines         424      424           
  Branches      140      148    +8     
=======================================
  Hits          418      418           
  Misses          6        6

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a9704b7...a6d52a8. Read the comment docs.